One of Shroom's favorite scriptures, 2 Pet 3:9, To stay in context of who Peter is speaking to we have to go back to chapter 1:1 where it tells us that he is talking to "them that have obtained like precious faith" , so he is addressing those who are already saved eternally, and even includes himself in his warning in chapter 3 verse 9, by using the word "us-ward". He says that he is not willing that none of them "perish"(lose their fellowship with God) but that all(all of those he is talking to) should come to repentance(repentance being a work of man, and eternal salvation is not by works of man).
2 Pet 3:9) The Lord is not slack concerning his promise, as some men count slackness; but is longsuffering to us-ward, not willing that any should perish, but that all should come to repentance.
Acts 2:38) Then Peter said unto them, Repent, and be baptized every one of you in the name of Jesus Christ for the remission of sins, and ye shall receive the gift of the Holy Ghost.