Contradiction with Isaiah 44:6
This verse states that there is no God besides the Lord, seemingly contradicting Psalms 136:3 which extends thanksgiving to the "Lord of lords," implying other 'lords' exist.
Isaiah 44:6: Thus saith the LORD the King of Israel, and his redeemer the LORD of hosts; I [am] the first, and I [am] the last; and beside me [there is] no God.
Contradiction with Exodus 15:11
This verse questions who is like the Lord, suggesting uniqueness in power and existence, which may contrast with the idea of "lords" as mentioned in Psalms 136:3.
Exodus 15:11: Who [is] like unto thee, O LORD, among the gods? who [is] like thee, glorious in holiness, fearful [in] praises, doing wonders? [gods: or, mighty ones?]
Contradiction with 1 Timothy 2:5
Declares there is one God and one mediator, implying sole divinity and mediation as opposed to the hierarchical structure hinted at by "Lord of lords" in Psalms 136:3.
1 Timothy 2:5: For [there is] one God, and one mediator between God and men, the man Christ Jesus;