Jesus Baptism and Temptation

Was Jesus Baptized by John to identify Him as sinner like other people?

So, Why Jesus really need to be baptized?
What significance can we get from His baptism?
Then, if Christ is God Himself, what significance does it give us about the temptation of Christ by Satan in the wilderness?

Huh!
Without all these things (from Mark chapter1) what Jesus did, we can not do all things from ourselves to please God without :in Christ', that Jesus is the 'fulfillment' of the OT Promises of God, overcoming even unto His death, 'the death of death', in the Cross of Calvary.....
for us to be JUSTIFIED by God, that we,
the elect,....may please and Glorify the 'Triune' God.