en_tn/gal/01/15.md

he called me through his grace

Possible meanings are "God called me to serve Him because He is gracious" or 2) "he called me by means of his grace."

to reveal his Son in me

Possible meanings are 1) "to allow me to know his (God's) son" (see UDB) or 2) "to show the world through me that Jesus is God's son."

proclaim him

"proclaim God's Son" or "preach the good news about God's Son"

consult with flesh and blood

"ask people to help me understand the message"

go up

"travel"