Ellen White on being careful not to hold to tightly to our opinions

There is no excuse for any one in taking the position that there is no more truth to be revealed, and that all our expositions of Scripture are without an error. The fact that certain doctrines have been held as truth for many years by our people, is not a proof that our ideas are infallible. Age will not make error into truth, and truth can afford to be fair. No true doctrine will lose anything by close investigation. We are living in perilous times, and it does not become us to accept everything claimed to be truth without examining it thoroughly; neither can we afford to reject anything that bears the fruits of the Spirit of God; but we should be teachable, meek and lowly of heart. There are those who oppose everything that is not in accordance with their own ideas, and by so doing they endanger their eternal interest as verily as did the Jewish nation in their rejection of Christ. The Lord designs that our opinions shall be put to the test, that we may see the necessity of closely examining the living oracles to see whether or not we are in the faith. Many who claim to believe the truth have settled down at their ease, saying, “I am rich, and increased with goods, and have need of nothing.” But Jesus says to these self-complacent ones, Thou “knowest not that thou art wretched, and miserable, and poor, and blind, and naked.” Let us individually inquire, Do these words describe my case? If so, the True Witness counsels us, saying, “Buy of me gold tried in the fire, that thou mayest be rich; and white raiment, that thou mayest be clothed, that the shame of thy nakedness do not appear; and anoint thine eyes with eye-salve, that thou mayest see.”

{RH, December 20, 1892 par. 1}