2 Peter 3:5

Overview - 2 Peter 3
He assures them of the certainty of Christ's coming to judgment, against those scorners who dispute against it;
warning the godly, for the long patience of God, to hasten their repentance.
10 He describes also the manner how the world shall be destroyed;
11 exhorting them, from the expectation thereof, to all holiness of life;
16 and again to think the patience of God to tend to their salvation, as Paul wrote to them in his epistles.
Treasury of Scripture Knowledge

2 Peter 3:5  (King James Version)
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:

they willingly
Proverbs 17:16 ; John 3:19 John 3:20 ; Romans 1:28 ; 2 Thessalonians 2:10-12

by the word
Genesis 1:6 Genesis 1:9 ; Psalms 24:2 ; 33:6 136:6 Hebrews 11:3

Greek consisting.
Colossians 1:17