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).
When man trusts in nothing, he receives nothing in return. That is the primary point of Job 15:31. Yet, that is not the only truth being taught. It is also true that people should not trust in anything of little to no value. This would include beauty (Ezekiel 16:15; Proverbs 31:30) and riches (Psalm 62:10). Unfortunately, many in this world have become accustomed to trust in their intellect, beauty, and riches. The end result is borne out in the entertainment and business worlds, but the seeds of this troubling problem usually begin in early childhood. Young people often hear the emphasis placed upon their appearance or education as the primary means of getting the things that these young people want most in life.