What is the biblical & patristic basis for the belief that the saints go to Heaven instead of Sheol after the resurrection and ascension of Jesus?

As they say, a picture is worth a thousand words: [(source)](https://zondervanacademic.com/blog/intermediate-state) The above link already makes some good arguments, but considering that the linked site could go down for unexpected reasons and that other people might be aware of different arguments, I ask: - What is the **biblical basis** for this "afterlife model", namely, that the righteous/saints in Old Testament times originally went to the compartment in Sheol for the righteous, but after Jesus' crucifixion, resurrection and ascension now all the saints go immediately to Heaven upon death? - What is the **patristic basis**? By this I mean what are the earliest [Apostolic Fathers](https://en.wikipedia.org/wiki/Apostolic_Fathers) , [Ante-Nicene Fathers](https://en.wikisource.org/wiki/Ante-Nicene_Fathers) & [Church Fathers](https://en.wikipedia.org/wiki/Church_Fathers) in general that first proposed and/or endorsed this model? - Is there any evidence that this "afterlife model" was taught by the Apostles themselves? _________ Related questions: - https://christianity.stackexchange.com/q/74231/50422 - https://christianity.stackexchange.com/q/89518/50422 - https://christianity.stackexchange.com/q/89140/50422 - https://christianity.stackexchange.com/q/89207/50422 I also recommend checking out these BHSE questions on Luke 16:19-31: - [Luke 16:19-31 Lazarus and the rich man - literal, allegorical or a mixture of both?](https://hermeneutics.stackexchange.com/q/27088/38524) - [What are the origins of the different elements present in the setting of the parable of Lazarus and the rich man (Luke 16:19-31)?](https://hermeneutics.stackexchange.com/q/74270/38524) _________ **Appendix** Here is another picture: [(source)](http://www.middletownbiblechurch.org/doctrine/hades.htm)