We have no just claim against God. He owes us nothing more than justice, which he has given us.
God owes us nothing; however, God in His grace and love, came down from heaven to pay the penalty of sin for all...
Isaiah 53:6 (WEB) 6 All we like sheep have gone astray. Everyone has turned to his own way; and Yahweh has laid on him the iniquity of us all.
So God is offering eternal life to whosoever will believe in His Son at the hearing of the Gospel without prejudice, discrimination, favoritism or partiality.
John 3:14-18 (WEB) 14 As Moses lifted up the serpent in the wilderness, even so must the Son of Man be lifted up, 15 that whoever believes in him should not perish, but have eternal life. 16 For God so loved the world, that he gave his one and only Son, that whoever believes in him should not perish, but have eternal life.
Does God invite only some to the Wedding Feast (Matthew 22:1-14), or does God send out His servants to gather all that would come?
He is free to give mercy to whom he pleases and chooses
(Ro 9:14-18), and no one can say to him "What have you done?" (Ro 9:20)
He owes us nothing more.
God does not owe us anything; yet, because of His great love for mankind, He holds out the invitation of salvation to all; so that, whosoever believes in Lord Jesus may have eternal life.
Romans 11:32 (WEB)
For God has shut up all to disobedience, that he might have mercy on all.
Titus 2:11 (WEB) 11 For the grace of God has appeared, bringing salvation to all men
1 Timothy 2:6 (WEB) 6 who gave himself as a ransom for all, the testimony in its own times
Hebrews 2:9 (WEB) 9 But we see him who has been made a little lower than the angels, Jesus, because of the suffering of death crowned with glory and honor, that by the grace of God he should taste of death for everyone.
He does not owe anyone mercy. Justice does not require him to give anyone mercy, only to give them what they are due; and as his enemies, with natures which do not want to be governed by him, but to govern themselves, they are due/owed condemnation.
And that is what he does (Ro 5:18).
You are intent at limiting God's love and grace, and attempting to prove that God can show favoritism and partiality, when Scripture teaches us that God shows no partiality toward persons, but rather judges all persons on how they respond to His grace.
All through the NT God makes plain to understand that He desires to have mercy on all - to whosoever will believe in His Son, listening to and following Him.
God is not required to have mercy on anyone, however, God's holy Word makes plain that God would be unjust to offer salvation for only those God chooses to give faith to to be saved, and to hell with the rest of mankind. That would mean God shows partiality and favoritism in His gracious offer of salvation.
Thankfully we have a righteous God who shows no favoritism or bias. A loving God who has suffered and died for the entire world, so that those believing in Lord Jesus may be granted the free gift of God's grace.
Romans 11:32 (WEB)
For God has shut up all to disobedience, that he might have mercy on all.
Titus 2:11 (WEB) 11 For the grace of God has appeared, bringing salvation to all men
Isaiah 53:6 (WEB) 6 All we like sheep have gone astray. Everyone has turned to his own way; and Yahweh has laid on him the iniquity of us all.
1 John 2:2 (WEB) 2 And he is the atoning sacrifice for our sins, and not for ours only, but also for the whole world.
John 1:29 (WEB) 29 The next day, he saw Jesus coming to him, and said, “Behold, the Lamb of God, who takes away the sin of the world!
John 3:14-18 (WEB) 14 As Moses lifted up the serpent in the wilderness, even so must the Son of Man be lifted up, 15 that whoever believes in him should not perish, but have eternal life. 16 For God so loved the world, that he gave his one and only Son, that whoever believes in him should not perish, but have eternal life.
John 4:42 (WEB) 42 They said to the woman, “Now we believe, not because of your speaking; for we have heard for ourselves, and know that this is indeed the Christ, the Savior of the world.”
2 Corinthians 5:19 (WEB)
19 … God was in Christ reconciling the world to himself, not reckoning to them their trespasses, and having committed to us the word of reconciliation.
1 Timothy 2:6 (WEB) 6 who gave himself as a ransom for all, the testimony in its own times
1 Timothy 4:10 (WEB) 10 For to this end we both labor and suffer reproach, because we have set our trust in the living God, who is the Savior of all men, especially of those who believe.
Hebrews 2:9 (WEB) 9 But we see him who has been made a little lower than the angels, Jesus, because of the suffering of death crowned with glory and honor, that by the grace of God he should taste of death for everyone.
Although God has paid the ransom for all people, bringing salvation to the whole world, only those who believe after hearing the Gospel appropriate that ransom to themselves.
John 3:14-18 (WEB) 14 As Moses lifted up the serpent in the wilderness, even so must the Son of Man be lifted up, 15 that whoever believes in him should not perish, but have eternal life. 16 For God so loved the world, that he gave his one and only Son, that whoever believes in him should not perish, but have eternal life.
Blessings