'On that Day' in the Bible

But the days will come when the Bridegroom will be taken away from them; then, on that day, they will fast.

"On that day, if a man is on the housetop and his goods inside, let him not go down to take them away; nor should a man in the field turn back.

Instantly the man became well, and he took up his bed and started to walk. Now it was Sabbath on that day;

when he comes to be glorified in his saints, and to be wondered at in all believers, on that Day; (for you also believed our testimony).

Henceforth there is laid up for me the garland of righteousness which the Lord, the righteous Judge, will award to me on that Day, and not to me only, but also to all those who have loved his appearing.

But the Day of the Lord will come like a thief; and on that Day the heavens will vanish with a crash, the heavenly bodies will melt with fervent heat, and the earth and all its works will be burned up.