KJV: Who now rejoice in my sufferings for you, and fill up that which is behind of the afflictions of Christ in my flesh for his body's sake, which is the church:
NASB: Now I rejoice in my sufferings for your sake, and in my flesh I do my share on behalf of His body, which is the church, in filling up what is lacking in Christ's afflictions.
KJV: So that we ourselves glory in you in the churches of God for your patience and faith in all your persecutions and tribulations that ye endure:
NASB: therefore, we ourselves speak proudly of you among the churches of God for your perseverance and faith in the midst of all your persecutions and afflictions which you endure.
KJV: Pure religion and undefiled before God and the Father is this, To visit the fatherless and widows in their affliction,and to keep himself unspotted from the world.
NASB: Pure and undefiled religion in the sight of our God and Father is this: to visit orphans and widows in their distress, and to keep oneself unstained by the world.