Genèse 11:5

And the Lord was revealed to punish them for the work of the city and the tower which the sons of men builded.

וירד ה' לראות, The Torah uses the expression “G’d descended to see, etc.,” only when the sins committed by the people concerned were not yet ripe for severe punishment but would become so if left unchecked. Retribution which results from G’d “descending,” must be viewed as a kind of preventive medicine, designed to avoid the need for more drastic action at a later stage. One well known example of G’d’s preventive retribution is the בן סורר ומורה, a thirteen year old who stole a little meat and wine from his parents, and whose punishment is execution if the parents brought him to court as an unmanageable teenager (Deut. 21,18, see Rashi, and Sanhedrin 72 on this). In the case of Sodom, where G’d is also reported as “descending,” (Genesis 18,21) this also occurred at a time when their sin had not yet been greater than that of other surrounding nations, so that only these cities had to be singled out for punishment at that time. What distinguished the Sodomites was only the cruelty with which they committed the same kind of sins as those committed by other nations. This would eventually have led to such a corrupt world that the need for G’d to intervene on a global rather than a local basis, would have become unavoidable. Ezekiel 16,49 also describes the sin of the Sodomites in such terms when he wrote הנה זה היה עון סדום אחותך...ויד עני ואביון לא החזיקה”This was the sin of Sodom your sister…..but the hand of the poor and the needy she did not support.” Similarly, the punishment of the Israelites when they were exiled was brought forward out of concern that something worse might become their fate if G’d did not intervene at that time and exile them so that He would not eventually have to punish them even more harshly. (Deut 32,20) “I can see what would be their ultimate end.”

'וירד ה, When G’d, from time to time, takes a closer look at what His creatures on earth are doing, such an activity is generally introduced by the expression וירד ה', “G’d descended.” Relative to G’d’s stature, His involving Himself with the problems of sinful men is below what His dignity could command. [a venerable Torah sage is exempt from involving himself with the taking home of lost property and looking for its owner. If this is so out of consideration for the scholar’s dignity, how much more could we expect that G’d does not bother with us? Ed. (compare Deut. 22,4)]

לראות, we encounter the same term when G’d “descended to see” if the reports which had reached Him about the wickedness of the people of Sodom were as serious as He had heard. (Genesis 18,21) Onkelos distinguishes between the meaning of the words here and in Genesis 18, describing His action here as לאיתפרעא, “retribution,” and the action of G’d vis a vis the Sodomites as דין, “justice.”

אשר בנו, which they had commenced building; [they never got to finish it. Ed.]

בני האדם, they are appropriately referred to as בני האדם, “children of Adam,” having followed their own instincts and inclinations instead of heeding G’d’s instructions, just as their forefather Adam had done. G’d had wanted them to populate the earth, and they had chosen to concentrate in a miniscule part of the earth. It is interesting that before G’d brought on the deluge, the Torah did not describe Him as “descending” as it did here or in connection with the Sodomites. Instead, the Torah there spoke about what G’d had seen, i.e. ראיה, instead of ירידה. (Genesis 6,5) The reason is that the deluge was something everybody knew about, seeing it was experienced by everybody. The whole point of G’d “descending,” is in order to examine a state of affairs which is not so widely known, so that it needs investigation. Something known to everybody does not require examination to determine if it is true. Concerning all these expressions, the bottom line is that the Torah uses a syntax familiar to people on earth, even if it does not accurately reflect G’d’s thoughts and feelings.