14. This has reference to verse 9. St. John here proves what might be questioned, regarding God’s sending his Son to save the world, from the very evidence of the senses on the part of the Apostles themselves. The words, “we have seen,” &c., are the same as those of the 1st chapter (verses 1, 2). He insists on this point particularly, because it was called in question by the early heretics; and besides, it is the basis and foundation of all Christian faith and charity.