1 Corinthians 15:15
Yea, and we are found false witnesses of God; because we have testified of God that he raised up Christ: whom he raised not up, if so be that the dead rise not.
Cross-reference
1 Corinthians 15:13 lays the logical foundation: if no resurrection, then Christ is not raised, which Paul uses in his argument here.
1 Corinthians 15:20 declares Christ actually raised, directly opposing the hypothetical false witness scenario.
In 1 Corinthians 6:14, God raises both Christ and believers by his power — reinforcing the resurrection claim Paul defends here.
Acts 2:24 declares God raised Jesus – the very testimony Paul says the apostles bear, and would be false if not true.
Acts 2:32 asserts the apostles are witnesses of Jesus' resurrection – exactly the role Paul says they fulfill.
Acts 4:10 provides Peter's bold declaration that God raised Jesus from the dead—a specific example of the witness Paul references.
Acts 4:33 shows the apostles giving witness to the resurrection with power, directly echoing the testimony Paul references.
Acts 10:39-42 records Peter's claim that he and others are witnesses of Jesus' death and resurrection, the same witness Paul references.
Acts 13:30-33 has Paul himself preaching that God raised Jesus from the dead, a direct example of such witness.
Hebrews 13:20 states that God brought Jesus from the dead — confirming the testimony Paul refers to in his argument.
Job 13:7-10 rebukes those who speak falsely for God – similar to Paul's concern about being false witnesses about God.