Contradiction with Proverbs 15:29
Psalms 143:1 speaks of the Lord hearing prayers, while Proverbs 15:29 states that the Lord is far from the wicked and does not hear their prayers.
Proverbs 15:29: The LORD [is] far from the wicked: but he heareth the prayer of the righteous.
Contradiction with Isaiah 59:2
Psalms 143:1 suggests that God hears prayers, while Isaiah 59:2 highlights that sins can separate individuals from God and hinder their prayers.
Isaiah 59:2: But your iniquities have separated between you and your God, and your sins have hid [his] face from you, that he will not hear. [have hid: or, have made him hide]
Contradiction with James 4:3
Psalms 143:1 implies God listens to pleas for mercy, but James 4:3 states that some prayers are not answered because they are asked with wrong motives.
James 4:3: Ye ask, and receive not, because ye ask amiss, that ye may consume [it] upon your lusts. [lusts: or, pleasures]