In 2 Peter 3:3-4, we read of scoffers that mock the Lord’s promise to come again after His ascension to Heaven. They shall appear in the last days, full of themselves and their wisdom. “Where is the promise of His coming?”

The scoffers grew impatient, noting that everything continues as in the days of their forefathers, and as it has been since the days of Creation.
Since the Apostles heard of the second coming of Christ,