'Indeed' in the Bible

What we have seen and heard we announce to you too, so that you may have fellowship with us (and indeed our fellowship is with the Father and with his Son Jesus Christ).

(See what sort of love the Father has given to us: that we should be called God's children -- and indeed we are! For this reason the world does not know us: because it did not know him.

Everyone who practices sin also practices lawlessness; indeed, sin is lawlessness.