Psalm 16:10 For You will not leave my soul in Sheol, Nor will You allow Your Holy One to see corruption. NKJV
The New King James Version replaces hell with Sheol. Sheol is the Old Testament expression of the grave. There was little understanding of the resurrection and many scholars of the temple were divided over the issue.
Mark 12:18a Then come unto him the Sadducees, which say there is no resurrection;
It was common to view all that were dead to abide in one place, since all were dead. One of the original meanings is hollow, perhaps to indicate a burial tomb.
Exodus 27:8 Hollow with boards shalt thou make it: as it was shewed thee in the mount, so shall they make it.
This hollow is a description of the Ark of the Covenant. No one in those days connected Sheol with the hollow of the Ark because the Ark was in the Holy of Holies and no corrupt thing could enter therein. In Psalm 16:10b it so states His Holy One would not see corruption.
What does one have to do with the other?
John 15:4a Abide in me, and I in you.
If you are in Christ, and He will not suffer corruption, then you will not suffer corruption. This is positional sanctification. I am in Christ therefor sin cannot touch me.
Isaiah 40:11 He shall feed his flock like a shepherd: he shall gather the lambs with his arm, and carry them in his bosom, and shall gently lead those that are with young.
How many souls does it take to fill the heart of God? As many stars as there are in the universe? Perhaps, I don’t know. I just know that I am one.