These promises all come from the New King James Version.
"Through Him we have received grace and apostleship for obedience to the faith among all nations for His name, among whom you also are the called of Jesus Christ." - Romans 1:5-6
"For all have sinned and fall short of the glory of God,being justified freely by His grace through the redemption that is in Christ Jesus, whom God set forth as a propitiation [that is, an act of regaining the favor of God by doing something that pleases Him] by His blood, through faith, to demonstrate His righteousness, because in His forbearance God had passed over the sins that were previously committed." - Romans 3:23-25
"Concerning this thing I pleaded with the Lord three times that it might depart from me. 9 And He said to me, “My grace is sufficient for you, for My strength is made perfect in weakness.” Therefore most gladly I will rather boast in my infirmities, that the power of Christ may rest upon me. " - 2 Corinthians 12:8-9
"For by grace you have been saved through faith, and that not of yourselves; it is the gift of God, 9 not of works, lest anyone should boast." - Ephesians 2:8-9
"But to each one of us grace was given according to the measure of Christ’s gift. " - Ephesians 4:7
"Grace and peace be multiplied to you in the knowledge of God and of Jesus our Lord, " - 2 Peter 1:2