method of authenticating a document is not, as with us, by a signature, but by the impression of a seal (1 Kings 21:8; Esther 3:12; 8:8, 10; Jer. 32:10). The meaning here then is that Jesus’ commission as the Messiah of God is authenticated by the Father, by the works given him to do (John 5:36). 28 Then said they unto him, What shall we do, that we might work the works of God? =28. What can we do that we may work the works of God?= Observe _can_, not _shall_; subjunctive, not future. _The works of God_ are not works wrought by God, but works pleasing to God (Jer. 48:10; 1 Cor. 15:58). The meaning is not, What are the works of God which we shall do? but, What can we do in order that we may please God by our works? This is the question which humanity has ever been asking, repeated in the pilgrimages and the self-mutilations of the Oriental religions, in the penances and appointed prayers of the mediæval religions, and in much of the so-called Christian activity of modern Protestantism. This was the question which Loyola asked by his vigils, and to which Luther found an answer when, climbing Pilate’s staircase on his knees, he heard the words, “The just shall live by faith,” and fled from the religion of works to that of faith. That the questioners of Christ were seeking, not guidance to devout activity, but to divine rewards, is clear from the sequel (ver. 31). 29 Jesus answered and said unto them, This[217] is the work of God, that ye believe on him whom he hath sent. [217] 1 John 3:23.