Acts 28:4 sets up the expectation of Paul's death from the viper; his survival in 28:5 contradicts that judgment.

Psalm 91:13 promises treading on serpents and trampling them — Paul's experience here literally fulfills that guarantee of divine protection.

Mark 16:18 promises that believers will handle serpents unharmed — Paul's viper encounter demonstrates that sign.

Luke 10:19 gives authority over serpents and scorpions with no harm — Paul experiences that authority here.

In 2 Kings 4:41, Elisha neutralizes poisonous stew — a parallel to Paul being unharmed by the viper. Both show God's servants rendering deadly agents harmless.

In Numbers 21:6-9, serpents bring judgment and the bronze serpent brings healing — contrasting with Paul's unharmed encounter.

Daniel 3:25 shows three men unharmed in fire — a parallel of divine protection from a deadly element, like Paul's survival of the viper.