John 10:28-30 New King James Version (NKJV)

²⁸ And I give them eternal life, and they shall never perish; neither shall anyone snatch them out of My hand. ²⁹ My Father, who has given them to Me, is greater than all; and no one is able to snatch them out of My Father’s hand. ³⁰ I and My Father are one.”

Romans 4:3-8 New King James Version (NKJV)

³ For what does the Scripture say? “Abraham believed God, and it was accounted to him for righteousness.”^{[a] 4} Now to him who works, the wages are not counted as grace but as debt.

David Celebrates the Same Truth

⁵ But to him who does not work but believes on Him who justifies the ungodly, his faith is accounted for righteousness, ⁶ just as David also describes the blessedness of the man to whom God imputes righteousness apart from works:

Romans 11:29 New King James Version (NKJV)

²⁹ For the gifts and the calling of God are irrevocable.

Ephesians 4:30 New King James Version (NKJV)

³⁰ And do not grieve the Holy Spirit of God, by whom you were sealed for the day of redemption.