Important Words:
فرقنا (We divided) is from فرق meaning, he divided or he split. فرق الشعر means, he made parting in the hair (Aqrab).
بکم (for you) may give a number of meanings: (1) for you; (2) with you, i.e. the sea divided or receded as you proceeded, as if you were the means of dividing it; (3) because of you, i.e. in order to save you; (4) in your presence, i.e. while you were present (Kashshaf).
Commentary:
The incident mentioned in this verse relates to the time when, under God’s command, Moses led the Israelites from Egypt to Palestine. The Israelites left secretly at night, and when Pharaoh learnt of their flight, he pursued them with his hosts in order to bring them back to bondage. The verse mentions the favour bestowed by God on the Israelites by dividing the sea for them and drowning the Egyptians. The incident is narrated in Exod. 14:21-30. The Bible says: "And Moses stretched out his hand over the sea; and the Lord caused the sea to go back by a strong east wind all that night and made the sea dry land and the waters were divided. And the children of Israel went into the midst of the sea upon the dry ground and the waters were a wall unto them on their right hand and on their left. And the Egyptians pursued and went in after them to the midst of the sea… And the waters returned and covered the chariots and the horsemen and all the host of Pharaoh that came into the sea after them; there remained not so much as one of them."
The بحر (sea) spoken of in the Quranic verse and mentioned in the Biblical quotation given above refers to the Red Sea through which or through an extremity of which the Israelites passed in their flight from Egypt to the Holy Land (Exod. 14).
Besides the verse under comment, the Quran also speaks of this incident in 20:78, 26:64 and 44:25. Says the Quran: And We sent a revelation to Moses, saying, 'Take away My servants by night and strike for them a dry path through the sea' (20:78). Again: Then We revealed to Moses, saying, 'Strike the sea with thy rod'. Whereupon it parted and every part was like a huge sandhill, i.e. on one side was the sea itself, and on the other (from which the sea had receded) there loomed large depressions filled with water (26:64). And again: Take My servants away by night; for you will surely be pursued. And leave the sea motionless (i.e. pass through quickly and leave it at a time when the tide has all receded but has not yet begun to flow back, so that, on the one hand, finding the sea-bed dry and, on the other, feeling secure in the thought that the high tide was not likely to overtake them, the Egyptians might be tempted to follow on); they are a host which is doomed to be drowned (44:24, 25).
In view of the above description, the facts appear to be as follows. When the Israelites were on their way to the Promised Land, they were pursued by the army of Pharaoh. When they reached the arm of the Red Sea which lay across their route, they were greatly dismayed, for Pharaoh was close behind with his hosts. But God cheered them through Moses, asking him to strike the water with his rod. This being the time of ebb-tide, the sea receded, exposing to view in the bed of the sea huge mounds of dry sand interspersed with depressions filled with water. Under the lead of Moses the Israelites quickly crossed the dry bed of the sea to the opposite bank. The army of Pharaoh came in pursuit, and while they were yet in the bed of the sea the high tide returned and drowned them all.
It should be remembered that, according to the Quran, a miracle is purely the work of God, and man has no hand in it. So, the striking of the sea by Moses was merely a symbol or a sign, having nothing to do with the actual parting of the sea which was exclusively the work of God, Who so arranged that it was the time of ebb-tide when Moses reached the sea so that just when He lifted his rod the sea began to recede. But when the army of Pharaoh began to cross the sea, they met with obstacles, just as heavily equipped armies generally do, and their progress was naturally retarded so that while they were yet in the midst of the sea, the high tide flowed and they were all drowned.
The words of the Quran do not lend themselves to the erroneous inference that there was an actual split in the sea to afford a passage for Moses and his followers. The two words used in the Quran in this connection are فرقنا (We divided) and انفلق (the sea parted); the root idea of both being "parting". These two words only corroborate the theory that when the Israelites reached the sea, the ebb-tide set in and the sea parted, exposing to view the sand dunes upon which the Israelites crossed over to the other side.
The fact that Pharaoh followed Moses through the bed of the sea also indicates that it was the time of the ebb-tide. If the sea had been actually split against all known laws of nature, Pharaoh would never have dared to follow in the wake of Moses. Nevertheless, it was a great miracle brought about by a subtle combination of the laws of nature which all united to save the Israelites and destroy Pharaoh and his people.
In this connection we may well quote an incident in Napoleon’s life which goes to illustrate how the tide helped Moses and destroyed Pharaoh in their journey across the Red Sea. In Abbott’s Life of Napoleon it is related that, "One day, with quite a retinue, he (Napoleon) made an excursion to that identical point of the Red Sea which, as tradition reports, the children of Israel crossed three thousand years ago. The tide was out, and he passed over the Asiatic shore upon extended flats. Various objects of interest engrossed his attention until late in the afternoon, when he commenced his return, the twilight faded away, and darkness came rapidly on. The party lost their path, and, as they were wandering bewildered among the sands, the rapidly returning tide surrounded them. The darkness of the night increased, and the horses floundered deeper and deeper in the rising waves. The water reached the girths of the saddles, and dashed upon the feet of the rider, and destruction seemed inevitable. From that perilous position Napoleon extricated himself by that presence of mind and promptness of decision which seemed never to fail him…The horses did not reach the shore until midnight, when they were wading breast deep in the swelling waves. The tide rises on that part of the coast to the height of 22 feet. 'Had I perished in that manner like Pharaoh', said Napoleon, 'it would have furnished all the preachers in Christendom with a magnificent text against me'." (Abbott’s Life of Napoleon, Chap. 12, p. 96).
The words, while you looked on, have been added in the verse to make the Israelites realize that though the above miracle was performed before their very eyes and their proud and haughty oppressor was brought to naught in their very sight, yet they proved ungrateful to their Lord and His Prophet.