We have the assurance of all God's promises not because we are faithful but because He is faithful. We have nothing to boast about. He who died as us and for us that He might live through us works through us for His glory. He has anointed each of us for the great privilege of being His ambassadors in a hurting world. He put His seal of ownership upon us through the Holy Spirit to be our guarantee that He will do all that He has promises us as His children.