Contradiction with Proverbs 25:19
Trusting in unreliable allies in times of trouble is like a broken tooth, undermining the confidence presented in Psalms 118:7.
Proverbs 25:19: Confidence in an unfaithful man in time of trouble [is like] a broken tooth, and a foot out of joint.
Contradiction with Jeremiah 17:5
Cursed is the man who trusts in man, directly contradicting the assurance of having the Lord among helpers in Psalms 118:7.
Jeremiah 17:5: Thus saith the LORD; Cursed [be] the man that trusteth in man, and maketh flesh his arm, and whose heart departeth from the LORD.
Contradiction with Micah 7:5
Advises against trusting a neighbor or even a friend, contradicting the idea of trustworthy support in Psalms 118:7.
Micah 7:5: Trust ye not in a friend, put ye not confidence in a guide: keep the doors of thy mouth from her that lieth in thy bosom.