He here signifies we are not left at any uncertainties, touching that matter of fact, wherein lies this mighty argument for the exercise of mutual love among Christians, God's having sent the Son to be the Saviour of the world; for, as he again inculcates, we testify upon eye-sight, having beheld him, and conversed with him, living and dying.
Related Commentaries of 1 John 4:14
1 John 4:14
14 And we have seen and do testify that the Father sent the Son to be the Saviour of the world.