"There are mines of truth yet to be discovered." (5T 704).
"We have only the glimmerings of the rays of the light yet to come to us." (RH, June 3, 1890).
"There are old, yet new truths still to be added to the treasures of our knowledge." (RH: February 25, 1890).
"There are bright and important truths of which we only discern the shadows." (E.G. White, Letter 147, 1897).
"Investigation of every point that has been received as truth will repay the searcher: He will find precious gems. And in closely investigating ever jot and tittle which we think is established truth, in comparing Scripture with Scripture, we may discover errors in our interpretation of Scripture." (RH: July 12, 1889; par. 15).
"The fact that certain doctrines have been held as truth for many years by our people is not proof that our ideas are infallible." (RH: December 20, 1892; par. 1).
"We cannot hold that a position once taken, an idea once advocated, is not, under any circumstances, to be relinquished. There is but One Who is infallible -- He Who is the Way, the Truth, and the Life." (Testimonies to Ministers and Gospel Workers, p. 105, par. 2).
"When God's people are at ease, and satisfied with their present enlightenment, we may be sure that He will not favour them. It is His will that they should be ever moving forward, to receive the increased and ever increasing light that is shining for them." (5T pp. 708, 709).
"We have many lessons to learn, and many, many to unlearn. God and heaven alone are infallible. Those who think that they will never have to give up a cherished view, never have occasion to change an opinion, will be disappointed." (RH: July 26, 1892).
"Among the different denominations there seems to be a determination developing to bind the consciences of their members. They are building up barriers about their own sects, and forming a purpose to listen to nothing outside of their own doctrines. They are restricting themselves from hearing anything new, or any doctrine presented by any other people than those who belong to their own church." (ST: August 27, 1894).
"New Light will ever be revealed on the word of God to him who is in living connection with the Sun of Righteousness . . . The diligent seeker for truth will find precious rays of light yet to shine forth from the Word of God . . . Many gems are yet scattered that are to be gathered together to become the property of the remnant people of God . . . Let no one come to the conclusion that there is no more truth to be revealed. . . There is no excuse for anyone in taking the position that there is no more truth to be revealed . . . We are not safe when we take the position that we will not accept anything else than that upon which we have settled as truth." (Counsels on Sabbath School Work, p. 34).
"We are to know more than we do at the present time. We are to comprehend the deep things of God. There are themes to be dwelt upon which are worthy of more than a passing notice. Angels have desired to look into the truths which are revealed to the people who are searching God's Word and with contrite hearts praying for wisdom, for greater lengths and breadths and heights of that knowledge which God alone can give. . . . as we near the closing scenes of this earth's history still more wonderful representations will be made. We need to study the Scriptures with humble, contrite hearts. Those who will devote their powers to the study of God's Word, and especially the prophecies referring to these last days, will be rewarded by the discovery of important truths." (Ms 75, 1899, pp. 4,5. [Untitled Manuscript, May 11, 1899] -- may be found as Manuscript release #54 in Manuscript Releases, Vol. 1, pp. 195-196).
"In the Scriptures thousands of gems of truth lie hidden from the surface seeker. The mine of truth is never exhausted. The more you search the Scriptures with humble hearts, the greater will be your interest, and the more you will feel like exclaiming with Paul: "O the depth of the riches both of the wisdom and knowledge of God! how unsearchable are His judgments, and His ways past finding out!" Every day you should learn something new from the Scriptures. Search them as for hid treasures, for they contain the words of eternal life. Pray for wisdom and understanding to comprehend these holy writings. If you would do this you would find new glories in the word of God; you would feel that you had received new and precious light on subjects connected with the truth, and the Scriptures would be constantly receiving a new value in your estimation." (5T p. 266).
"Every soul must look to God with contrition and humility, that He may guide and lead and bless. We must not trust to others to search the Scriptures for us. Some of our leading brethren have frequently taken their position on the wrong side; and if God would send a message and wait for these older brethren to open the way for its advancement, it would never reach the people. These brethren will be found in this position until they become partakers of the divine nature to a greater extent than ever they have been in the past." (GW 1913; p. 303).
"We must not think, 'Well, we have all the truth, we understand the main pillars of our faith, and we may rest on this knowledge.' The truth is an advancing truth, and we must walk in the increasing light." (RH: March 25, 1890).
"It is a fact that we have the truth, and we must hold with tenacity to the positions that cannot be shaken; but we must not look with suspicion upon any new light which God may send, and say, "Really, we cannot see that we need any more light than the old truth (historic Adventism) which we have hitherto received, and in which we are settle. While we hold to this position, the testimony of the True Witness applies to our cases its rebuke, "And knowest not that thou art wretched, and miserable, and poor, and blind, and naked." Those who feel rich and increased with goods and in need of nothing, are in a condition before God, and they know it not." (RH: August 7, 1894; par. 2).
"The Lord has made His people the repository of sacred truth. Upon every individual who has had the light of Present truth devolves the duty of developing that truth on a higher scale than it has hitherto been done." (MS # 27, 1897).
"At no period of time has man learned all that can be learned of the word of God. There are yet new views of truth to be seen, and much to be understood of the character and attributes of God,-- his benevolence, his mercy, his long forbearance, his example of perfect obedience. "And the Word was made flesh, and dwelt among us, and we beheld his glory, the glory as of the only begotten of the Father, full of grace and truth." This is a most valuable study, taxing the intellect, and giving strength to the mental ability. After diligently searching the word, hidden treasures are discovered, and the lover of truth breaks out in triumph. Without controversy great is the mystery of godliness: 'God was manifest in the flesh, justified in the Spirit, seen of angels, preached unto the Gentiles, believed on in the world, received up into glory.' 'Let this mind be in you, which was also in Christ Jesus: who, being in the form of God, thought it not robbery to be equal with God: but made himself of no reputation, and took upon him the form of a servant, and was made in the likeness of men.'" (Special Testimonies on Education, 1897; p.147, par.2).
"Whenever the people of God are growing in grace, they will be constantly obtaining a clearer understanding of His word. They will discern new light and beauty in its sacred truths. This has been true in the history of the church in all ages, and thus will continue to the end. But as real spiritual life declines, it has ever been the tendency to cease to advance in the knowledge of the truth. Men rest satisfied with the light already received from God's word, and discourage any further investigation of the Scriptures. They become conservative, and seek to avoid discussion…When no new questions are started by investigation of the Scriptures, when no difference of opinion arises which will set men to searching the Bible for themselves, to make sure that they have the truth, there will be many now, as in ancient times, who will hold to tradition, and worship they know not what." (5T pp. 706-707).