For you did not receive a spirit of slavery to fall back into fear, but you received a spirt of adoption, through which we cry, "Abba, Father!" The Spirit itself bears witness with our spirit that we are children of God, and if children, then heirs, heirs of God and joint heirs with Christ, if only we suffer with him so that we may also be glorified with him.
(Romans 8:5-7)
(New American Bible, Revised Edition)