“Quest. When did this fullness of the Spirit come upon Christ? When had he it?
Ans. 1. There was a fullness of the Spirit poured out upon Christ in the union of the human nature with the divine. Union and unction went together. There was anointing of the Spirit, together with the union of the Spirit.
Ans. 2. There was a more full manifestation of the Spirit in his baptism. When the Holy Ghost fell on him in the shape of a dove, then he received the Spirit. He was to enter into the ministry of the gospel. ‘The Spirit of the Lord God was upon him,’ because he had anointed him to preach good tidings unto the meek, &c.,’ Isa. 41:1.
Ans. 3. But the fullest degree of declaration and manifestation of the Spirit upon Christ was after his resurrection; after he had satisfied fully for our salvation. Then the stop of his glory was taken away.” -Richard Sibbes, Glorious Freedom: The Excellency of Gospel above the Law