Proverbs 28:9
"He that turneth away his ear from hearing the law, even his prayer shall be abomination."
Cross References (ranked by relevance)
Psalm 66:18
28
If I regard iniquity in my heart, the Lord will not hear me:
Proverbs 15:8
21
The sacrifice of the wicked is an abomination to the LORD: but the prayer of the upright is his delight.
Psalm 109:7
20
When he shall be judged, let him be condemned: and let his prayer become sin.
Proverbs 21:13
11
Whoso stoppeth his ears at the cry of the poor, he also shall cry himself, but shall not be heard.