'Full grown' in the Bible

Brethren, do not be children in mind; yet in evil be babes, but in mind be full-grown.

until we all attain to the unity of the faith, and of the full knowledge of the Son of God, to a full-grown man??o the measure of the stature of the fulness of Christ;

but solid food is for full-grown men, who by practice have their senses trained for the discernment both of good and evil.