2 Corinthians 5:1-10 (KJV)
1 For we know that if our earthly house of this tabernacle were dissolved, we have a building of God, an house not made with hands, eternal in the heavens.
2 For in this we groan, earnestly desiring to be clothed upon with our house which is from heaven:
3 If so be that being clothed we shall not be found naked.
4 For we that are in this tabernacle do groan, being burdened: not for that we would be unclothed, but clothed upon, that mortality might be swallowed up of life.
5 Now he that hath wrought us for the selfsame thing is God, who also hath given unto us the earnest of the Spirit.
6 Therefore we are always confident, knowing that, whilst we are at home in the body, we are absent from the Lord:
7 (For we walk by faith, not by sight:)
8 We are confident, I say, and willing rather to be absent from the body, and to be present with the Lord.
The account of Luke 16:19-31 (Rich Man and Lazarus in Hades) was before the cross. This is where Jesus went when he died on the cross.
1 Peter 3:18-22 (KJV)
18 For Christ also hath once suffered for sins, the just for the unjust, that he might bring us to God, being put to death in the flesh, but quickened by the Spirit:
19 By which also he went and preached unto the spirits in prison;
20 Which sometime were disobedient, when once the longsuffering of God waited in the days of Noah, while the ark was a preparing, wherein few, that is, eight souls were saved by water.
21 The like figure whereunto even baptism doth also now save us (not the putting away of the filth of the flesh, but the answer of a good conscience toward God,) by the resurrection of Jesus Christ:
22 Who is gone into heaven, and is on the right hand of God; angels and authorities and powers being made subject unto him.
This is what is referred to in:
Ephesians 4:8-10 (KJV)
8 Wherefore he saith, When he ascended up on high, he led captivity captive, and gave gifts unto men.
9 (Now that he ascended, what is it but that he also descended first into the lower parts of the earth?
10 He that descended is the same also that ascended up far above all heavens, that he might fill all things.)
Before the cross the entry to heaven was unavailable even to the faithful (sons of Abraham). This spiritual waiting chamber was part of Hades. But the suffering was in the other chamber of Hades on the far side of the great gulf / abyss where the angels who possessed men and animals were imprisoned upon the death of the host or their being exorcised from them.
I have made up a diagram (if it's permitted here):
All of the occupants of Hades were and are in spirit form. The bodies of people are still in their graves. The only resurrection to have taken place is Jesus who is both Spiritually and physically in heaven. When the inhabitants of Abraham's Bosom were taken to heaven... this was also in spirit form. As the opening verses of this post indicate when we are absent from our bodies (as believers in Jesus) we are present with the Lord in heaven in disembodied spirits.
When Jesus returns with the (spirits of ) the saints, their dead bodies will rise first in the resurrection / coming of our Lord. We who are alive on earth in our bodies will be instantaneously changed. 1 Thessalonians 4:13-18.
Jesus also spent the majority of the three days his body was in the tomb in heaven in his disembodied state. As he told the thief on the cross they'd be in heaven by sunset. John 20:17 says he had not yet ascended to the Father (meaning in his bodily resurrected form) btw.