Contradiction with Deuteronomy 3:26
While Psalms 107:19 suggests God responds to cries for help, Deuteronomy 3:26 describes God refusing to listen to Moses' plea.
Deuteronomy 3:26: But the LORD was wroth with me for your sakes, and would not hear me: and the LORD said unto me, Let it suffice thee; speak no more unto me of this matter.
Contradiction with Isaiah 1:15
In contrast to God's deliverance in Psalms 107:19, Isaiah 1:15 indicates that God will not hear when people spread out their hands in prayer due to their sins.
Isaiah 1:15: And when ye spread forth your hands, I will hide mine eyes from you: yea, when ye make many prayers, I will not hear: your hands are full of blood. [make...: Heb. multiply prayer] [blood: Heb. bloods]
Contradiction with Lamentations 3:8
Contradicting the assurance in Psalms 107:19, Lamentations 3:8 speaks of God shutting out prayer and refusing to listen.
Lamentations 3:8: Also when I cry and shout, he shutteth out my prayer.