Contradiction with Ecclesiastes 1:9
While Psalms 126:1 speaks of change and renewal, Ecclesiastes 1:9 suggests that nothing new happens under the sun.
Ecclesiastes 1:9: The thing that hath been, it [is that] which shall be; and that which is done [is] that which shall be done: and [there is] no new [thing] under the sun.
Contradiction with Jeremiah 17:5
Psalms 126:1 highlights divine intervention, whereas Jeremiah 17:5 warns against relying on human strength rather than placing trust in the Lord.
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.