Why is the Baptism of Christ important?
The approval of the Father. The presence of the Trinity is found in Jesus' baptism. There is community in the Godhead. How did God express love before creating angels and people?
God does not need us to have community and love. God does need us. However, this makes God's grace, love, and mercy even more remarkable.
Christians believe that God is love. The Trinity defines love: the love of the Father for the Son, and the Son for the Father, of the Father for the Spirit, of the Son for the Spirit, and of the Spirit for the Father and the Son. It is, finally, a love which is so great that it went out of itself. This is why God created and sustains all that exists.
Here we see that love is not a feeling or emotion, as many people think. Rather, love is a permanent relationship of self-giving and eternal mercy and compassion. Jesus Christ is the revelation to humanity of that permanent love, in which the Son lives in the Father, and the Father in the Son, and the Spirit in the Father and the Son.
This kind of love is beyond our understanding. It marks the beginning of Christ’s ministry