New International Version (NIV)
9 The Lord is not slow in keeping his promise, as some understand slowness. Instead he is patient with you, not wanting anyone to perish, but everyone to come to repentance.
We have a amazing God. He wants all people to repent of sins, so one day we all will be in heaven, together. Some people think He is slow in keeping this promise, but Jesus will return when we least expect Him to. Nobody will be on the news prediction His return. He says He will come like a thief in the night and take His children on to heaven, where we serve Him for eternity.