Okay, checking the context (agian). Hmmm seems Peter is explaining why Christ hasn't returned:
2pe 3:4 And saying, Where is the promise of his coming? for since the fathers fell asleep, all things continue as they were from the beginning of the creation.
Goes on to explain how things happened at the time of the flood:
2pe 3:5 For this they willingly are ignorant of, that by the word of God the heavens were of old, and the earth standing out of the water and in the water:
2pe 3:6Whereby the world that then was, being overflowed with water, perished:
2pe 3:7But the heavens and the earth, which are now, by the same word are kept in store, reserved unto fire against the day of judgment and perdition of ungodly men.
And applies it to the here and now:
2pe 3:8 But, beloved, be not ignorant of this one thing, that one day is with the Lord as a thousand years, and a thousand years as one day.
2pe 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.
The Lord is longsuffering and willing to hold off the destruction of the earth until such a point that it is clear that holding off will bring in no more. How long was it Noah worked on the ark? 120 years and there was no man but Noah and his family who believed. How much longer do you think God will wait for thousands of Christians to witness to thousands more. (sorry off subject and the rest of the passage goes further off)
So back on topic. If this scripture isn't good enough how about:
Jn 3:16 What does whosoever mean?
Matt 11:28 Come unto me, all ye that labour and are heavy laden, and I will give you rest.
Joh 1:7The same came for a witness, to bear witness of the Light, that all men through him might believe.
Joh 3:35The Father loveth the Son, and hath given all things into his hand.
Joh 3:36He that believeth on the Son hath everlasting life: and he that believeth not the Son shall not see life; but the wrath of God abideth on him.
Joh 17:1These words spake Jesus, and lifted up his eyes to heaven, and said, Father, the hour is come; glorify thy Son, that thy Son also may glorify thee:
Joh 17:2As thou hast given him power over all flesh, that he should give eternal life to as many as thou hast given him.
I could go on and on, but I'm ending with the above. What was it that God gave to the Son? All flesh. What else? As many as thou hast given him. Now wait, God already gave Christ power over all flesh, so who are these that are now being given? Well the verses from Jn 3 explains it quite well: He that believeth on the Son shall have everlasting life.
So we are back to I can't get past the usage of the word all.