2 Peter 3:8-9

But do not forget this one thing, dear friends: With the Lord a day is like a thousand years, and a thousand years are like a day. 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. 

With the Lord a day is like a thousand years, and a thousand years are like a day 
Psalm 90:4  A thousand years in your sight are like a day that has just gone by, or like a watch in the night.

The Lord is not slow in keeping his promise 
Habakkuk 2:3  For the revelation awaits an appointed time; it speaks of the end and will not prove false. Though it linger, wait for it; it will certainly come and will not delay.
Hebrews 10:37  For, "In just a little while, he who is coming will come and will not delay." (Isaiah 26:20; Habakkuk 2:3)

Instead he is patient with you 
Romans 2:4  Or do you show contempt for the riches of his kindness, forbearance and patience, not realizing that God's kindness is intended to lead you to repentance?
Romans 9:22-24  What if God, although choosing to show his wrath and make his power known, bore with great patience the objects of his wrath--prepared for destruction? What if he did this to make the riches of his glory known to the objects of his mercy, whom he prepared in advance for glory--even us, whom he also called not only from the Jews but also from the Gentiles?
1 Timothy 1:15-16  Here is a trustworthy saying that deserves full acceptance: Christ Jesus came into the world to save sinners--of whom I am the worst. But for that very reason I was shown mercy so that in me, the worst of sinners, Christ Jesus might display his immense patience as an example for those who would believe in him and receive eternal life.
2 Peter 3:15  Bear in mind that our Lord's patience means salvation, just as our dear brother Paul also wrote you with the wisdom that God gave him.

not wanting anyone to perish, but everyone to come to repentance 
1 Timothy 2:3-4  This is good, and pleases God our Savior, who wants all people to be saved and to come to a knowledge of the truth.
Revelation 2:21  "I have given her time to repent of her immorality, but she is unwilling."

(parentheses are mine)

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