'Three Days' in the Bible

And they set forward from the mountain of Jehovah and went three days' journey; and the ark of the covenant of Jehovah went before them in the three days' journey, to search out a resting-place for them.

And they removed from before Hahiroth, and passed through the midst of the sea into the wilderness, and went three days' journey in the wilderness of Etham, and encamped in Marah.