When they came to Marah, they could not drink the water at Marah because it was bitter. (That is why it's called Marah.)

So he cried out to the Lord, and the Lord showed him a tree. When he threw it into the water, the water became drinkable.

He made a statute and ordinance for them at Marah and He tested them there.

And they departed from before Pihahiroth, and passed through the midst of the sea into the wilderness, and went three days' journey in the wilderness of Etham, and pitched in Marah.

And they removed from Marah, and came unto Elim: and in Elim were twelve fountains of water, and threescore and ten palm trees; and they pitched there.

And she said unto them, Call me not Naomi, call me Mara: for the Almighty hath dealt very bitterly with me.

The Salutation of me Paul with my own hand. If any man love not the Lord Jesus Christ, let him be anathema: Maran-atha.

If anyone doth not dearly love the Lord, let him be anathema that is, "accursed" : Maran atha that is, "The Lord, cometh" .

Maran-atha. The grace of our Lord Jesus Christ be with you.