Комментарий к Бамидбар 23:27

וקבתי לי — This is not a command as is וקבנו (v. 13), but it is a future tense: perhaps it will seem right in His eyes that thou shalt curse them for me from there; malderas in O. F.

אולי יישר בעיני האלוקים וקבותו לי משם, perhaps this section of the people will be more deserving of a curse.

לכה נא אקחך, "come on, please, I will take you, etc." The word נא in this context is merely a sort of reluctant acknowledgment of what had already happened. Balak wants to try again from another vantage point. The reason he had not yet given up hope was that he thought that the two locations from which he had shown Bileam the Israelites were opposite the righteous Israelites, the ones who had never provoked G'd's anger. He tried to find a location from where Bileam could see the whole people. He was convinced that amongst such a large number of Israelites there had to be some sinners whose presence would provide Bileam with an opening for applying his curses. Balak says "perhaps G'd will agree, etc." When he added: "and curse them for me," instead of saying "and curse them," he meant that G'd did not have to approve a curse against Israel as long as He did not prevent Bileam from speaking his mind.

This is not a command. Because how could he command him to curse them immediately, for perhaps it would not be proper in the eyes of Hashem. Therefore he said וקבותו לי ["and you will curse them for me"] in the future tense, as if to say that once it is proper in the eyes of Hashem, then you should curse them.