Contradiction with Exodus 23:13
Psalms 138:1 speaks of praising God with one's whole heart, while Exodus 23:13 advises keeping away from even mentioning the names of other gods, which could be seen as a conflict between exclusive devotion and the mere acknowledgment of their existence.
Exodus 23:13: And in all [things] that I have said unto you be circumspect: and make no mention of the name of other gods, neither let it be heard out of thy mouth.
Contradiction with Matthew 6:1
Psalms 138:1 discusses praising God publicly, whereas Matthew 6:1 warns against doing righteous acts before others to be seen by them, highlighting a tension between public worship and private devotion.
Matthew 6:1: Take heed that ye do not your alms before men, to be seen of them: otherwise ye have no reward of your Father which is in heaven. [alms: or, righteousness] [of your: or, with your]
Contradiction with Luke 4:8
Psalms 138:1 emphasizes praising God directly, while Luke 4:8 underscores the idea of worshiping and serving only God, suggesting the possibility that outward praise could be misaligned if not solely focused on God.
Luke 4:8: And Jesus answered and said unto him, Get thee behind me, Satan: for it is written, Thou shalt worship the Lord thy God, and him only shalt thou serve.
Contradiction with Isaiah 29:13
Psalms 138:1 is about heartfelt praise, but Isaiah 29:13 critiques those who honor God with their lips while their hearts are far from Him, pointing out the potential contradiction between external praise and internal sincerity.
Isaiah 29:13: Wherefore the Lord said, Forasmuch as this people draw near [me] with their mouth, and with their lips do honour me, but have removed their heart far from me, and their fear toward me is taught by the precept of men: