Either way it IS God's GRACE.. no matter what we do to His eternal glory will always and forever be of His GRACE alone.. imo..
If you want specifics though.. imo Eph:1:13-14 is precisely how each and every one of us was placed into Christ.. and this connects nicely with 1 Cor 12:13, for there it says that we were all baptized into that one body (the body of Christ), by that SAME Spirit.
So I believe that water baptism comes after salvation.. although again, either way it's by GRACE through faith, and even that is not of ourselves.. it is the free gift of God, unto all and upon all that believe.
If salvation were by "grace alone" then all men would be saved for God's grace that saves hath appeared to all men, Tts 2:11.
But all are not saved for grace alone does not save but salvation takes God's grace and man's obedient faith....Eph 2:8 "For by
grace are ye saved through
faith"
Rom 5:2 "By whom also we have
access by faith into this grace wherein we stand, and rejoice in hope of the glory of God."
It conditionally takes faith on the part of man to access God's grace.
Faith includes water baptism:
Eph 2:8------faith>>>>>>>>>>>>>>saved
1Pet3:21----baptism>>>>>>>>>>>>saves
Only one way to be saved so faith must include water baptism making water baptism a condition that must be met to receive grace,as Mk 16:16 and Acts 2:38 put baptism BEFORE salvation not after.
Some wrongly argue that water baptism is a work, therefore one who thinks water baptism saves is trying to earn his salvation by this work. First, nowhere does the bible ever call water baptism a work that man does, God does the work when one is water baptism, Col 2:12-14. Secondly, submitting to water baptism does not earn one salvation no more than Naaman dipping earned his cleansing.
So those that would argue obedient works earn salvation realy have no argument unless they want to argue Naaman's dipping meant his cleasning was earned and not of grace.