Romans 3:4 says, “let God be true, but every man a liar.” Perhaps this truth serves as the foundational reason why God warned believers not to place their trust in man. Though the primary reason, it is not the only reason. In Psalm 146:3 the Lord warns, “Put not your trust in princes, nor in the son of man, in whom there is no help.” The real needs of mankind cannot be satisfied by man, even the best of men. Those who put their trust in man do so in disobedience to the Lord which results in their own personal harm. Psalm 118:8-9 twice stresses that “It is better to trust in the LORD.” An improper trust in man is, in many ways, a departure from the Lord (Jeremiah 17:5).
God knows everything about everything, yet Christians sometimes act as though He has some debilitating limitations. Once again, the Bible shines the light of truth upon the matter. It reveals that He is great, “and of great power: his understanding is infinite” (Psalm 147:5). In fact, His eyes “are in every place, beholding the evil and the good” (Proverbs 15:3). In other words, there is nothing that escapes the knowledge and attention of God. This includes the good and the bad! The Son of God proclaimed to the church at Thyatira that He knew their works, charity, service, faith, and patience. He too knows about the level of a man’s faith! He knows the content, strength, and reality of that faith. A man can and will fool others and frequently even deceives himself (Jeremiah 17:9), but he has no capacity to mislead God. The Lord knows those who believe and accept His word as the perfect word of God and He is not unrighteous to forget (Hebrews 6:10).
