Adam Clarke on John 1:37

And the two disciples heard him - And they perfectly understood their master's meaning; in consequence of which, they followed Jesus. Happy they who, on hearing of the salvation of Christ, immediately attach themselves to its author! Delays are always dangerous; and, in this case, often fatal. Reader! hast thou ever had Christ as a sacrifice for thy sin pointed out unto thee? If so, hast thou followed him? If not, thou art not in the way to the kingdom of God. Lose not another moment! Eternity is at hand! and thou art not prepared to meet thy God. Pray that he may alarm thy conscience, and stir up thy soul to seek till thou have found.