{20} Jesus saw Nathanael coming to him, and saith of him, Behold an Israelite indeed, in whom is no guile!

(20) Simple uprightness discerns the true Israelites from the false.

Jamieson-Fausset-Brown Bible Commentary

47. an Israelite indeed . no guile-not only no hypocrite, but with a guileless simplicity not always found even in God's own people, ready to follow wherever truth might lead him, saying, Samuel-like, "Speak, Lord, for Thy servant heareth" (1Sa 3:10).

Matthew Henry's Concise Commentary

1:43-51 See the nature of true Christianity, it is following Jesus; devoting ourselves to him, and treading in his steps. Observe the objection Nathanael made. All who desire to profit by the word of God, must beware of prejudices against places, or denominations of men. They should examine for themselves, and they will sometimes find good where they looked for none. Many people are kept from the ways of religion by the unreasonable prejudices they conceive. The best way to remove false notions of religion, is to make trial of it. In Nathanael there was no guile. His profession was not hypocritical. He was not a dissembler, nor dishonest; he was a sound character, a really upright, godly man. Christ knows what men are indeed. Does He know us? Let us desire to know him. Let us seek and pray to be Israelites indeed, in whom is no guile; truly Christians, approved of Christ himself. Some things weak, imperfect, and sinful, are found in all, but hypocrisy belongs not to a believer's character. Jesus witnessed what passed when Nathanael was under the fig-tree. Probably he was then in fervent prayer, seeking direction as to the Hope and Consolation of Israel, where no human eye observed him. This showed him that our Lord knew the secrets of his heart. Through Christ we commune with, and benefit by the holy angels; and things in heaven and things on earth are reconciled and united together.