Contradiction with Jeremiah 31:25
While Psalms 32:4 describes a period of intense weariness, Jeremiah 31:25 promises refreshment to the weary soul and replenishment to those who are exhausted.
Jeremiah 31:25: For I have satiated the weary soul, and I have replenished every sorrowful soul.
Contradiction with Matthew 11:28
Psalms 32:4 speaks of relentless pressure and draining, whereas Matthew 11:28 offers rest to all those who labor and are heavy laden.
Matthew 11:28: Come unto me, all [ye] that labour and are heavy laden, and I will give you rest.
Contradiction with Isaiah 40:29
In Psalms 32:4, there is a weariness from pressure, but Isaiah 40:29 explains how God gives power to the faint and increases strength to the weak.
Isaiah 40:29: He giveth power to the faint; and to [them that have] no might he increaseth strength.
Contradiction with 2 Corinthians 12:9
Where Psalms 32:4 describes unrelenting struggle, 2 Corinthians 12:9 assures strength made perfect in weakness and grace being sufficient.
2 Corinthians 12:9: And he said unto me, My grace is sufficient for thee: for my strength is made perfect in weakness. Most gladly therefore will I rather glory in my infirmities, that the power of Christ may rest upon me.