Acts 22:16 directly applies this promise — Paul is told to call on Jesus' name in baptism for forgiveness.

Joel 2:32 is the original prophecy being quoted here — Peter applies it to the outpouring of the Spirit and salvation in Christ.

Romans 10:12 echoes this very promise — 'all who call on him' are saved, emphasizing no distinction between Jew and Greek.

Romans 10:13 directly quotes this same Joel prophecy — confirming that the promise applies to all who call on Jesus.

In 1 Corinthians 1:2, Paul uses the same phrase 'call upon the name of the Lord' for all believers — echoing the universal salvation promise of Joel quoted here.

In Genesis 4:26, the same phrase 'call upon the name of the LORD' first appears in Scripture, marking the beginning of invoking God's name in worship.

In Genesis 12:8, Abram calls on the name of the LORD at an altar — another OT instance of this phrase, now applied to salvation in Christ.

In Psalm 18:3, the psalmist calls upon the LORD and is saved from enemies — a direct OT parallel to the promise that everyone who calls will be saved.

In Zechariah 13:9, the remnant calls on God's name and He claims them as His people — a prophetic parallel to the salvation promise for all who call.

Psalm 86:5 similarly promises God's forgiveness to all who call on Him — reinforcing the OT basis of this salvation promise.