Psalm 5:9

For not a word they speak can be trusted; destruction lies within them. Their throats are open graves; their tongues practice deceit.

Note Or flattery; cited in Romans 3:13

BSB · Berean Standard Bible
For there is no faithfulness in their mouth; their inward part is very wickedness; their throat is an open sepulchre; they flatter with their tongue.

Note faithfulness: or, stedfastness

Note their mouth: Heb. his mouth, that is, the mouth of any of them

Note very…: Heb. wickednesses

KJV · King James Version
For there is no faithfulness in their mouth. Their heart is destruction. Their throat is an open tomb. They flatter with their tongue.
WEB · World English Bible
For there is no faithfulness in their mouth; Their inward part is very wickedness; Their throat is an open sepulchre; They flatter with their tongue.
ASV · American Standard Version

Related passages

From the Treasury of Scripture Knowledge, grouped by the word they explain.

For
Psalm 36:1–4; Psalm 52:2; Psalm 58:3; Psalm 62:4, 9; Psalm 111:1–3; Jeremiah 9:3–6; Micah 6:12; Romans 1:29–31; Romans 3:13
faithfulness
or, stedfastness. their mouth. Heb. hismouth, that is, the mouth of any of them. inward.
Psalm 51:6; Psalm 58:2; Psalm 62:4; Psalm 64:6; Jeremiah 4:14; Jeremiah 17:9; Mark 7:21, 22; Luke 11:39
very wickedness
Heb. wickednesses. throat.
Luke 11:44; Romans 3:13
they
Psalm 12:2, 3; Job 32:21, 22; Proverbs 29:5; 1 Thessalonians 2:5