Mercy and Grace are essentially the same characteristic of our God. Mercy is withholding from us what we deserve – to die and stay dead. Grace is getting what we do not deserve – immortal abundant life in a New Heaven and New Earth. Humanity has this "living hope" because Jesus “died for our sins” and “bore our sins”.
"Christ died for our sins according to the Scriptures..." (1 Corinthians 15:3)
As son of a man, Jesus died like the rest of us, because of Adam’s sin…
“As in Adam all die…it is appointed unto men once to die” (1 Corinthians 15:22; Hebrews 9:27)
In so doing Jesus, the Son of God, identified Himself completely with humanity, even our death. Yet more importantly, He showed us that the same ALL who are "in Adam" will be made alive "in Christ".
"All we like sheep have gone astray..." (Isaiah 53:6)
“As in Adam all die…it is appointed unto men once to die” (1 Corinthians 15:22; Hebrews 9:27)
In so doing Jesus, the Son of God, identified Himself completely with humanity, even our death. Yet more importantly, He showed us that the same ALL who are "in Adam" will be made alive "in Christ".
"All we like sheep have gone astray..." (Isaiah 53:6)
"As in Adam all die, even so in Christ shall all be made alive…" (1 Corinthians 15:22)
"...we have gained access by faith into this grace in which we now stand…God demonstrated His own love for us in this: While we were still sinners, Christ died for us… we have now been justified by His blood, how much more shall we be saved from God’s wrath through Him… while we were God’s enemies, we were reconciled to Him through the death of His Son, how much more, having been reconciled, shall we be saved through His life… just as sin entered the world through one man (Adam), and death through sin, and in this way death came to all people… many died by the trespass of the one man…just as one trespass resulted in condemnation for all people, so also one righteous act (of Jesus) resulted in justification and life for all people. For just as through the disobedience of the one man the many were made sinners, so also through the obedience of the one man the many will be made righteous…where sin increased, grace increased all the more, so that, just as sin reigned in death, so also grace might reign through righteousness to bring eternal life through Jesus Christ our Lord.” (Romans 5:1-20)
Jesus said that He had come that we may have “abundant “ life. Not in the mortal body we now have, but in our future immortal body…
"I am the door; if anyone enters through me, he will be saved, and will go in and out and find pasture. The thief (death) comes only to steal and kill and destroy; I came that they may have life, and have it ABUNDANTLY. I am the good shepherd; the good shepherd lays down His life for the sheep.” (John 10:9-11)
Yes humanity has gone astray and death comes to our mortal bodies - but Jesus will save every one of us, and give us immortal life.
"Just as we have borne the image of the man of dust, we shall also bear the image of the man of heaven. I tell you this, brothers: flesh and blood cannot inherit the kingdom of God, nor does the perishable inherit the imperishable. Behold! I tell you a mystery. We shall not all sleep, but we shall all be changed, n a moment, in the twinkling of an eye, at the last trumpet. For the trumpet will sound, and the dead will be raised imperishable, and we shall be changed.For this perishable body must put on the imperishable, and this mortal body must put on immortality. When the perishable puts on the imperishable, and the mortal puts on immortality, then shall come to pass the saying that is written: “Death is swallowed up in victory...thanks be to God, who gives us the victory through our Lord Jesus Christ. Therefore, my beloved brothers, be steadfast, immovable, always abounding in the work of the Lord, knowing that in the Lord your trouble is not in vain." (1 Corinthians 15:49-58)