Jesus' decision to proceed with the baptism by John at that juncture proved his connection with him and his people.
“I want to know Christ—yes, to know the power of his resurrection and participation in his sufferings, becoming like him in his death, and so, somehow, attaining to the resurrection from the dead.” (Philippians 3:10 & 11 NIV)
Joshua told the people, “Consecrate yourselves, for tomorrow the Lord will do amazing things among you.” Joshua 3:5 NIV
“Brothers, I do not consider that I have made it my own. But one thing I do: forgetting what lies behind and straining forward to what lies ahead, 14 I press on toward the goal for the prize of the upward call of God in Christ Jesus.” (Phil. 3:13 ESV2011)