Psalms 8:5-6

These verses come in with greater fulness, to explain and to confirm what went before: how the Son of God was made a little, or for a little space, lower than the angels, during his incarnation and ministry upon earth. For, as the Covenant-head of his church and people, he was before all things, and by him all things did consist, consequently he was above angels. His goings forth were of old, from everlasting. He was the first born of every creature, saith the apostle, the image of the invisible God, the appointed heir of all things, and by whom God made the worlds. Now all these can only refer to Christ as Mediator, both God and man in one Person. His name, Mediator, is suited to both his natures, and not separate from either, but in the union of both forming one Christ. Hence the Psalmist, in contemplating the wonders of redemption, and by such a wonderful way, thus exclaims, What is man, that thou art mindful of him!