Yep that's the moon headed for the hills after getting caught by the sun's appearance.
Jesus had much to say about being mindful of His return.
- Matthew 24:36
But of that day and hour knoweth no man, no, not the angels of heaven, but my Father only.
Matthew 24:42 Watch therefore: for ye know not what hour your Lord doth come.
- Matthew 24:44 Therefore be ye also ready: for in such an hour as ye think not the Son of man cometh.
- Matthew 24:50 The lord of that servant shall come in a day when he looketh not for him, and in an hour that he is not aware of,
- Matthew 25:13 Watch therefore, for ye know neither the day nor the hour wherein the Son of man cometh.