2 Peter 1:14

14. Knowing The Lord Jesus had said to him, pointing to his death by martyrdom, “When thou shalt be old, thou shalt stretch forth thy hands, and another shall gird thee, and carry thee whither thou wouldest not.” John 21:18. He was now become old, and well knew that the end could not be far distant. It is not needful to suppose, as do some, that he had received a recent revelation of his death as near.

Shortly Quickly, swiftly, rather than soon. Whenever the departure might come, it would be sudden and rapid. Calmly does the apostle speak of the putting off of my tabernacle, as if it were a garment, leaving the inner man, the soul, living and untrammelled.