Charles Spurgeon Commentary 2 Peter 3:5

"For this they willfully forget, that there were heavens from of old, and an earth compacted out of water and amidst water, by the word of God;" — 2 Peter 3:5 (ASV)

For this they willingly are ignorant of,–

Ignorant that there has been one great interposition of God to avenge the insults to his holy law, and to overturn the rule of sin: For this they willingly are ignorant of,