Psalm 43:3-4 KJV — O send out thy light and thy truth: let them lead me; let them bring me unto thy holy hill, and to thy tabernacles. Then will I go unto the altar of God, unto God my exceeding joy: yea, upon the harp will I praise thee, O God my God.
Many times we are so distracted by what is wrong that we fail to see what is right.
Error and truth coexist in our world. Truth will reveal error but error, in order to exist as error, must tie itself to a truth. Error will many times disguise itself as a counterfeit truth. Where there is truth, error will be close by. And where error is, truth is close by.
Our human intelect can never define truth from error 100% of the time. However, the Spirit of truth, sent by God, will illuminate the truth through the written Word of God (Bible) and, in the process, expose error.
And once again:
John 16:13 — Howbeit when he, the Spirit of truth, is come, he will guide you into all truth: for he shall not speak of himself; but whatsoever he shall hear, that shall he speak: and he will shew you things to come.