43 On the morrow, he willed to go forth to Galilee, and he findeth Philip, and saith to him, 'Be following me.' 44 And Philip was from Bethsaida, of the city of Andrew and Peter; 45 Philip findeth Nathanael, and saith to him, 'Him of whom Moses wrote in the Law, and the prophets, we have found, Jesus the son of Joseph, who 'is' from Nazareth;' 46 and Nathanael said to him, 'Out of Nazareth is any good thing able to be?' Philip said to him, 'Come and see.' 47 Jesus saw Nathanael coming unto him, and he saith concerning him, 'Lo, truly an Israelite, in whom guile is not;' 48 Nathanael saith to him, 'Whence me dost thou know?' Jesus answered and said to him, 'Before Philip's calling thee—thou being under the fig-tree—I saw thee.' 49 Nathanael answered and saith to him, 'Rabbi, thou art the Son of God, thou art the king of Israel.'
Matthew Henry's Commentary on John 1:43-49
Commentary on John 1:43-51
(Read John 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.