God said no single humans have entered heaven.
Hebrews 9:27 says, “It is appointed for men to die once, and after that comes judgment.”
The verse above tells us that we must die before we can enter heaven after judgement. Even the faithful men of God like David, Abraham and Isaac have not entered heaven yet. Heaven is the homewhere God lives.
Some strong believers in the bible saw heaven in their dreams but is totally different from going there to live. Apostle John saw heaven is a revelation and prophet Elijah was taken to heaven with whirlwind. They all saw it, but they're not living there.
1 Corinthians 15:51-52 says, “We shall not all sleep, but we shall all be changed, in a moment, in the twinkling of an eye, at the last trumpet.”
After the resurrection humans will go to heaven that what the bible said. It also said when Jesus comes again all the righteous will rise and go back to heaven with him. When that time comes humans will live with God in heaven, and heaven will become our permanent home.