From My Mothers Womb

"But when God, who had set me apart even from my mothers womb and called me through His grace, was pleased to reveal His Son in me.." Galations 1:15-16

Although this is the testimony of Paul it is the same for every christian. God has set the christian apart even from their mothers womb. When that wonderful day of salvation comes it is the Lord who calls through his grace as He knows His sheep. The final work is the work of the Holy Spirit when the Son is revealed inside the Christian and makes His abode in you.
Sanctification
As a christian we are sanctified from the world. This is a complete work for we are no longer of the world but are completely sanctified from it and adopted as Sons and Daughters of our Lord and God Jesus Christ.
Preaching Jesus
The Lord could take us to be with himself for eternity at that moment yet with the Son revealed inside the christian it is Jesus whom they will preach lifting Up the Son of man so that Jesus will draw all men unto himself.