Please read Deuteronomy 18:18
18 I will raise them up a Prophet from among their brethren, like unto thee, and will put my words in his mouth; and he shall speak unto them all that I shall command him.
Muslims claim that this verse is talking about Muhammed, as they believe that the verse is addressed to the Israelites and the brethren of the Israelites must be the Ishmaelites.
Please read the whole chapter
1 The priests the Levites, and all the tribe of Levi, shall have no part nor inheritance with Israel: they shall eat the offerings of Yahweh made by fire, and his inheritance.
2 Therefore shall they have no inheritance among their brethren: Yahweh is their inheritance, as he hath said unto them.
3 And this shall be the priest's due from the people, from them that offer a sacrifice, whether it be ox or sheep; and they shall give unto the priest the shoulder, and the two cheeks, and the maw
4 The firstfruit also of thy corn, of thy wine, and of thine oil, and the first of the fleece of thy sheep, shalt thou give him.
5 For Yahweh thy Elohim hath chosen him out of all thy tribes, to stand to minister in the name of Yahweh, him and his sons for ever.
6 And if a Levite come from any of thy gates out of all Israel, where he sojourned, and come with all the desire of his mind unto the place which Yahweh shall choose;
7 Then he shall minister in the name of Yahweh his Elohim, as all his brethren the Levites do, which stand there before Yahweh.
8 They shall have like portions to eat, beside that which cometh of the sale of his patrimony.
9 When thou art come into the land which Yahweh thy Elohim giveth thee, thou shalt not learn to do after the abominations of those nations.
10 There shall not be found among you any one that maketh his son or his daughter to pass through the fire, or that useth divination, or an observer of times, or an enchanter, or a witch.
11 Or a charmer, or a consulter with familiar spirits, or a wizard, or a necromancer.
12 For all that do these things are an abomination unto Yahweh: and because of these abominations Yahweh thy Elohim doth drive them out from before thee.
13 Thou shalt be perfect with the Yahweh thy Elohim.
14 For these nations, which thou shalt possess, hearkened unto observers of times, and unto diviners: but as for thee, Yahweh thy Elohim hath not suffered thee so to do.
15 Yahweh thy Elohim will raise up unto thee a Prophet from the midst of thee, of thy brethren, like unto me; unto him ye shall hearken;
16 According to all that thou desiredst of Yahweh thy Elohim in Horeb in the day of the assembly, saying, Let me not hear again the voice of Yahweh my Elohim, neither let me see this great fire any more, that I die not.
17 And Yahweh said unto me, They have well spoken that which they have spoken.
18 I will raise them up a Prophet from among their brethren, like unto thee, and will put my words in his mouth; and he shall speak unto them all that I shall command him.
19 And it shall come to pass, that whosoever will not hearken unto my words which he shall speak in my name, I will require it of him.
Acts 3:23
20 But the prophet, which shall presume to speak a word in my name, which I have not commanded him to speak, or that shall speak in the name of other gods, even that prophet shall die.
21And if thou say in thine heart, How shall we know the word which the Yahweh hath not spoken?
22 When a prophet speaketh in the name of Yahweh, if the thing follow not, nor come to pass, that is the thing which Yahweh hath not spoken, but the prophet hath spoken it presumptuously: thou shalt not be afraid of him.
It is obvious that the chapter is addressed to the Levites, who's brethren are the other 11 tribes of Israel.
And Muhammed certainly was not in the midst of the Israelites.
Let's also look at Moses' Geneaology....
Moses son of Amram son of Kohath son of Levi son of Israel (Jacob) son of Isaac son of Abraham son of Terah.......
- Firstly Moses is the brother of Aaron
- Secondly he is an Amramite who's brethren are the Izharites, Hebronites and Uzzielites.
- Thirdly he is a Kohathite who's brethren are the Gershonites and Merarites.
- Fourthly he is a Levite who's brethren are the Judahites, Simeonites, Reubenites, Benjaminites, Josephites, Issacharites, Zebulunites, Danites, Naphtalites, Gadites and Asherites.
- Fifthly he is an Israelite who's brethren are the Edomites.
- Sixthly he is an Isaacite who's brethren are the Ishmaelites, Zimranites, Jokshanites, Medanites, Midianites, Ishbakites and Shuahites.
If you look at chapter 18, you can clearly see that the Subjects are the Levites, and it was in this capacity that Moses was being spoken too and speaking as.
The brehtren of the Levites are the other 11 tribes of Israel.
It is incorrect to assume that the Israelites are being spoken to, and even if they were, the brehtren of the Israelites are the Edomites - not the Ishmaelites!
And if you want to hang on to the idea that the brethrn of Moses are the Ishmaelites - you must prove that Muhammed is in fact and Ishmaelite using authentic sources only.
Thank You.