Question. What words in this Scripture indicate immortality occurs IMMEDIATELY after physical death?
Question. Why did Jesus Christ {our Creator} have to wait until the 3rd day to be resurrected from the dead but His creation does not ever die?
1Cr 15:51 Behold, I shew you a mystery; We shall not all sleep, but we shall all be changed,
1Cr 15:52 In a moment, in the twinkling of an eye, at the last trump: for the trumpet shall sound, and the dead shall be raised incorruptible, and we shall be changed.
1Cr 15:53 For this corruptible must put on incorruption, and this mortal [must] put on immortality.
1Cr 15:54 So when this corruptible shall have put on incorruption, and this mortal shall have put on immortality, then shall be brought to pass the saying that is written, Death is swallowed up in victory.
1Cr 15:55 O death, where [is] thy sting? O grave, where [is] thy victory?
1Cr 15:56 The sting of death [is] sin; and the strength of sin [is] the law.
1Cr 15:57 But thanks [be] to God, which giveth us the victory through our Lord Jesus Christ.
Do we die ? As to the body, because of sin, we do. But our spirits are alive because of Christ.
Therefore, we are not cut off from Him - and Sheol in the OT is a place where there is no fellowship with God.
Why did Jesus wait ? Presumably, to let there be no doubt that He had indeed died, that He was not playing dead. By being dead, He commends His love to us, because His sharing the penalty threatened to Adam shows, like so much else, how far He was prepared to go for us - so He has shared not in our living alone, not in undergoing horrible suffering alone, not even in being buried; He has shared even in being dead; He was not in a cataleptic trance: He was dead. “The gods of the heathen are not so” - but this God is humble, gracious, & stops at nothing, not even dying & staying dead, to give us every reason to trust in Him.
And because His Death is therefore indisputable, so is the completeness of his victory. It is final, decisive, and irreversible.
So for us, death is a mere detail - it does not end our fellowship with Him at all. So it cannot affect the care of the Blessed for those whom they have left on earth. If it could, there would be no “great cloud of witnesses”, no “spirits of just men made perfect”; yet Hebrews 12 says there are both.
Our bodies will be raised at His Coming - then we shall be complete. ##