Exodus 19:15

Do not deprive each other, except by mutual consent and for a time, so you may devote yourselves to prayer. Then come together again, so that Satan will not tempt you through your lack of self-control.

and be prepared by the third day, for on the third day the LORD will come down on Mount Sinai in the sight of all the people.

Gather the people, sanctify the congregation, assemble the aged, gather the children, even those nursing at the breast. Let the bridegroom leave his room, and the bride her chamber.

For this reason, you also must be ready, because the Son of Man will come at an hour you do not expect.

“Therefore, that is what I will do to you, O Israel, and since I will do this to you, prepare to meet your God, O Israel!

On the third day, when morning came, there was thunder and lightning. A thick cloud was upon the mountain, and a very loud blast of the ram’s horn went out, so that all the people in the camp trembled.

But who can endure the day of His coming? And who can stand when He appears? For He will be like a refiner’s fire, like a launderer’s soap.

by asking the priests of the house of the LORD of Hosts, as well as the prophets, “Should I weep and fast in the fifth month, as I have done these many years?”

the third white horses, and the fourth dappled horses—all of them strong.