Good Day, Renniks
Glad you asked:
The Lord is not slow to fulfill his promise as some count slowness, but is patient toward you, not wishing that any should perish, but that all should reach repentance.
We have established, that the pronoun “you” always in this context refers to (beloved) believers. The any (pronoun), and the all (adj) refer to and modify the you in the text.
We see that in John 3:16
YLT - for God did so love the world, that His Son—the only begotten—He gave, that every one who is believing in him may not perish, but may have life age-during.
The ones doing the verb believing in him, not perishing. The not perishing is limited to doing "believing".
So how does that couple with repentance?
God though out time will be patient to ensure all believers (gifted faith from God) current and future, are granted the gift of repentance for the explicit purpose of leading them to the knowledge of the truth, ( you can not believe truth you do not know), bring them to their senses and allow them to escape the snare of the devil because they have been captured by him, and need the ability to escape.
Ti 2:24 And the Lord's servant must not be quarrelsome but kind to everyone, able to teach, patiently enduring evil, correcting his opponents with gentleness. God may perhaps grant them repentance leading to a knowledge of the truth, and they may come to their senses and escape from the snare of the devil, after being captured by him to do his will.
The wonderful purpose and plan of God to by his grace give gifts that by design set the captive free, and effectively with purpose show us the truth with out fail.
In Him,
Bill