How do we know the return of Christ is certain?

Peter warns about scoffers in the last days, as recorded in 2 Peter 3:3-4, highlighting their disbelief regarding the promise of Christ's return. Nevertheless, the underlying assurance is that the heavens and the earth are preserved by God's word for a time of judgment. This reinforces the theological belief that Christ's return is not only certain but also imminent. The faithful should remain vigilant, remembering the promise of His coming, as it serves to encourage perseverance in faith amidst worldly distractions.