KJV:
Endeavouring to keep the unity of the Spirit in the bond of peace.
NASB:
being diligent to preserve the unity of the Spirit in the bond of peace.
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.