Numbers 24:14

Am returning to my people. I am now like the rest of my people — the Holy One, Blessed is He, had forsaken him.

Come, I will advise you. Concerning the action you should take. What was the advice? The God of these people hates promiscuity, etc., as stated in “Chelek.” The proof that Bil’am instigated his advice so that they would be ensnared into immorality is from Scripture’s declaration, “they were involved with the Israelites through Bil’am’s advice.”

What this people will do to your people. This is a shortened passage; I will advise you about ensnaring them, and I will tell you how they are destined to destroy Moav at the end of days — “and smash the great men of Moav.” Targum [Onkelos] explains where the Hebrew falls short.

And now, behold, I return to go to my people. Come, I will give thee counsel: Go, furnish tavern houses, and employ seductive women to sell food and drinks cheaply, and to bring this people together to eat and drink, and commit whoredom with them, that they may deny their God; then in a brief time will they be delivered into thy hand, and many of them fall. Nevertheless, after this they will still have dominion over thy people at the end of the days.

COME AND I WILL COUNSEL THEE. Since Balaam wanted to tell [Balak] about the punishment [that would befall] his people, as it is written, and he shall smite through the corners of Moab, therefore he told him, I will counsel thee, that is to say: “I will tell you ‘on the side’ an advice, so that others should not hear it.” “Come and I will counsel thee what you have to do [to revenge yourself upon Israel]. And what was the advice [that he gave him]? [He told him]: ‘The G-d of these [Israelites] hates immorality, etc., [therefore I advise you to seduce Israel into sin by means of the lure of the Moabite women],’ as is narrated in the Chapter Cheilek., meaning: “I will counsel thee how to lead the people astray, and I will tell you what this people shall do …” Ramban explains the phrase “I will counsel thee” differently. You may know that it was Balaam who gave them this counsel [to lead Israel astray] through immorality, for it is said, Behold, these [women] caused the children of Israel, through the counsel of Balaam, [to revolt so as to break faith with the Eternal]. WHAT THIS PEOPLE SHALL DO TO THY PEOPLE. This is an elliptical verse [which means as follows]: ‘I will counsel thee how to corrupt them, and I will [also] tell you what evil they are destined to do to Moab in the end of days.’” This is Rashi’s language.
The correct interpretation [of the word i’atzcha, normally translated: I will counsel thee] seems to me to be that Balaam told Balak: “I will tell you the purpose that G-d has planned that this people shall do to thy people in the end of days,” this being similar to the expressions: This is the ‘eitzah’ (purpose) that is ‘y’utzah’ (purposed) upon the whole earth; Hear ye the ‘atzath’ (design) of the Eternal, that He hath ‘ya’atz’ (purposed) against Edom. Balaam said i’atzcha [which literally means “I will give you counsel”], because one who hears counsel, [as Balaam heard G-d’s counsel], is called a no’atz [he with whom counsel is taken]. (with whom took He counsel).
And this prophecy [in the following verses], refers to Messianic times, for all of Balaam’s prophecies added [to the previous ones] in [speaking of more] distant events. Thus at first he said that Israel is [now] the portion of the Eternal and His inheritance; in the second prophecy he added that they would [later on] conquer the Land and kill its kings. In the third [prophecy] he saw them dwelling in the Land and increasing and multiplying therein, and that they would appoint a king [Saul] who would defeat Agag, and that the kingdom [of Israel] would be further exalted; for he saw David [whose kingdom] was exalted exceedingly, as it is said, And David perceived that the Eternal had established him king over Israel, and that He hath exalted his kingdom for His people Israel’s sake, that is to say, because He had promised them that their kingdom would be exalted. And now in this fourth prophecy Balaam continued [on the future] and saw the Messianic era; therefore he spoke of it as a very distant event, saying, I see him, but not now; I behold him, but not nigh, [a phrase] which he did not use in his first [three] prophecies. He stated that this is the purpose of G-d which He had planned, to come to pass in the end of days.

איעצך, a counsel of how to entrap the Israelites in sin.

Although I know what these people are going to do to yours in the distant future, at this time, during your life, you have no call to fear them. This was the advice that is described later on in Numbers 31,16. Here Moses does not spell out the details of this advice as Bileam himself did not have the courage to say this aloud, and he only whispered it to Balak. It was revealed in detail by Moses only when there was a need to do so.

לכה איעצך, the advice was to use the women as seducers. This is made crystal clear in Numbers 31,16.

אשר יעשה העם הזה לעמך באחרית הימים, for indeed the evil this people will cause to your nation will not occur during your lifetime so that you, personally, have nothing to fear. It will only happen at the end of time. He repeats this later on in verse 17, and we find reference to this in Isaiah 11,14.

לכה איעצך, “now I will give you some advice.” According to Rabbi Yochanan, there were three people involved in this “advice.” They were Bileam, Job, and Yitro. Job who kept silent was punished for not objecting with the afflictions described in the Book of Job. Yitro who left this discussion in disgust, was rewarded by his descendants becoming seated in the offices near the Temple of Solomon. Bileam was killed by the sword in the campaign against Midian. This has been documented in Chronicles I 2,55. The families of scribes mentioned in that verse were the descendants of Yitro. They are also mentioned in Judges 1,16: as “the sons of Keyni, the father-in-law of Moses, who had settled in the cities of Date Palms, (formerly Jericho) (based on Sanhedrin folio 106. An alternate explanation of the word: איעצך. “I will give you an advice concerning your concern that the Israelites in your proximity will completely ruin any grassland with its roots.” As long as you will not provoke them you have nothing at all to fear from them.”

אשר יעשה העם הזה, “what this people will do in the future.” This will be explained presently.