Psalm 19:14 asks for heart and words to be acceptable — the positive counterpart to Psalm 66:18's warning that cherished sin blocks God's hearing.

In Job 27:9, the question is whether God hears the wicked in distress — directly parallel to the condition in the main verse that God does not listen to those with iniquity.

In Proverbs 15:8, the wicked's sacrifice is abomination while the upright's prayer delights God — reinforcing the principle that God rejects the prayers of the wicked.

Proverbs 15:29 echoes this: God hears the righteous but is far from the wicked — the same condition for answered prayer.

Proverbs 28:9 states that turning from the law makes prayer an abomination — directly parallel to sin blocking God's hearing.

Isaiah 1:15 shows God hiding his eyes from prayers when hands are full of blood — sin prevents being heard.

John 9:31 explicitly says God does not listen to sinners but hears worshippers who do his will — same principle.

Isaiah 55:7 calls the wicked to forsake sin so God will pardon — the same condition as Psalm 66:18's warning that unconfessed sin prevents God from listening.

1 John 3:22 links answered prayer to keeping commandments — the opposite of cherishing iniquity that blocks God's hearing.

2 Timothy 2:22 urges calling on the Lord from a pure heart — directly contrasting cherishing iniquity that hinders prayer.

1 Timothy 2:8 calls for lifting holy hands without anger — a condition for prayer similar to not cherishing iniquity.

In Ezekiel 20:31, God refuses to be consulted by those defiled with idols — mirroring the condition that iniquity hinders God's hearing.

In Ezekiel 14:3, the same principle applies: idols in the heart prevent God from being consulted, just as cherishing iniquity blocks prayer.

Jeremiah 11:14 reinforces that God will not listen to prayers because of persistent sin — matching Psalm 66:18's warning.

Jeremiah 11:11 states God will not listen to their cries due to sin — the same consequence as Psalm 66:18's condition of cherished iniquity.

Isaiah 58:9 promises God's answer when sin is removed — directly echoing Psalm 66:18's principle that sin blocks prayer.

Job 16:17 claims his prayer is pure, implying purity is needed for God to hear — directly parallel to Psalm 66:18.

In Job 22:27, Eliphaz promises that repentance leads to answered prayer — the same condition as Psalm 66:18's warning about unconfessed sin blocking prayer.

Proverbs 21:13 adds another condition: ignoring the poor leads to unanswered prayer — similar principle of unheeded cries.

In Job 27:8, the hope of the godless is cut off — echoing the principle that God does not hear those who cherish iniquity.

James 4:3 says prayers go unanswered when asked with wrong motives — a different but related barrier to being heard.