Metaphysical meaning of Marah (mbd)
Marah, ma'-rah (Heb.)--bitterness; grief; misfortune; calamity.
A place in the desert to which the Israelites came after having crossed the Red Sea on their way out of Egypt. The water here was bitter, and Moses sweetened it, in obedience to the command of Jehovah, by casting a certain tree into the waters (Exod. 15:23; Num. 33:8).
It was at Marah, after the sweetening of the waters so that the Israelites could drink, that Jehovah revealed this truth to them: "If thou wilt diligently hearken to the voice of Jehovah thy God, and wilt do that which is right in his eyes, and wilt give ear to his commandments, and keep all his statutes, I will put none of the diseases upon thee, which I have put upon the Egyptians: for I am Jehovah that healeth thee." Jehovah here represents the Lord, the divine law, the divine principle in action. It manifests in and through man according to his conception of it and of himself in relation to it, and according to the innermost thoughts and desires of his mind and heart.