1:15[ 8 ]John bare witness of him, and cried, saying, This was he of whom I spake, He that cometh [b ]after me is preferred[ c] before me: for he was before me.

(8) John is a faithful witness of the excellency of Christ.
(
b) That is, “He before whom I am sent to prepare him the way”: so that these words refer to the time of his calling, and not of his age, for John was six months older than Christ.
(
c) This sentence has in it a turning of the reason as we call it, as one would say, a setting of that first which should be last, and that last which should be first: for in plain speech it is this, “He that comes after me, is better than I am, for he was before me.” We find a similar turning of the reason in (Lu 7:47): “Many sins are forgiven her, because she loved much”, which is this much to say, “She loved much, because many sins are forgiven her.”

1:16[ 9 ]And of his fulness have all we received, and[ d ]grace for grace.

(9) Christ is the most plentiful fountain of all goodness, but he gave out his gifts most bountifully at that time when he exhibited and showed himself to the world.
(d) That is, grace upon grace; as one would say, graces piled one upon another.

1:18[ 10] No man hath seen God at any time; the only begotten Son, which is in the[ e ]bosom of the Father, he hath[ f ]declared [him].

(10) The true knowledge of God proceeds only from Jesus Christ.
(e) Who is nearest to his Father, not only in respect of his love towards him, but by the bond of nature, and by means of that union or oneness that is between them, by which the Father and the Son are one.
(f) Revealed him and showed him unto us, whereas before he was hidden under the shadows of the law, so that our minds were not able to perceive him: for whoever sees him, sees the Father also.

Greek Lexicon

bosom==stēthos==stay’-thos==breasts, breast, bosom, chests

Reflection

   The center of one’s being is the heart[bosom], the center of the Cross, the center of your spirituality. As children we are in our Father,s heart.