'Heat' in the Bible

While the earth remaineth, seedtime and harvest, and cold and heat, and summer and winter, and day and night shall not cease.

And the LORD appeared unto him in the plains of Mamre: and he sat in the tent door in the heat of the day;

Then he placed the branches that he had stripped bare in all the watering troughs where the flocks came to drink. He placed the branches in front of the flock, and they went into heat as they came to drink.

Whenever the more vigorous of the flock came into heat, Jacob would place the branches in the troughs in front of the flock to make them mate by the branches.

There I was—the heat consumed me by day and the frost by night, and sleep fled from my eyes.