John 6:29

τὸ ἔργον. They probably thought of works of the law, tithes, sacrifices, &c. He tells them of one work, one moral act, from which all the rest derive their value, continuous belief (πιστεύητε, not πιστεύσητε) in Him whom God has sent. Comp. Acts 16:31. On ἵνα and ἀπέστειλεν see on John 1:8; John 1:33; John 4:47; John 17:3.