KJV: Till we all come in the unity of the faith, and of the knowledge of the Son of God, unto a perfect man, unto the measure of the stature of the fulness of Christ:
NASB: until we all attain to the unity of the faith, and of the knowledge of the Son of God, to a mature man, to the measure of the stature which belongs to the fullness of Christ.
KJV: Having the understanding darkened, being alienated from the life of God through the ignorance that is in them, because of the blindness of their heart:
NASB: being darkened in their understanding, excluded from the life of God because of the ignorance that is in them, because of the hardness of their heart;