Acts 5:36

For before these days rose up Theudas, boasting himself to be somebody; to whom a number of men, about four hundred, joined themselves: who was slain; and all, as many as obeyed him, were scattered, and brought to nought.

Cross-references

In Acts 8:9, Simon Magus also 'giving out that himself was some great one' — a direct parallel to Theudas boasting himself to be somebody.

Acts 21:38 refers to another rebel leader (the Egyptian) with followers—a direct historical parallel to Theudas.

Paul warns of men from within the church drawing disciples after them — similar to Theudas drawing followers, though from outside.

Jesus says another coming in his own name will be received — Theudas came in his own name, contrasting with Jesus who came in the Father's name.