Psalm 125:4
Do good, O Lord, unto those that be good, and to them that are upright in their hearts.
Cross-reference
Psalm 32:2 blesses those without deceit — aligning with 'upright in heart' from the main verse.
Psalm 73:1 affirms God is good to the pure in heart — directly parallel to doing good to the upright.
Psalm 84:11 declares God withholds no good thing from the upright — a direct echo of the prayer for God to do good to them.
Psalm 7:10 explicitly calls God the savior of the upright in heart — the same group prayed for in Psalm 125:4.
Psalm 11:2 also uses 'upright in heart' — here describing the wicked targeting them, contrasting with the prayer for their good.
Psalm 32:11 calls the upright in heart to rejoice — the same group for whom Psalm 125:4 asks God's goodness.
Psalm 94:15 also uses 'upright in heart' — here they follow righteousness, consistent with the prayer for good to them.
Psalm 51:18 asks God to 'do good' to Zion — same phrase but applied to the nation, not individuals.
John 1:47 describes Nathanael as an Israelite without guile — an example of the upright in heart prayed for in Psalm 125:4.
Revelation 14:5 depicts the 144,000 as without guile — embodying the upright heart that Psalm 125:4 says God blesses.