Islam cannot be from God because its appeal is to man's lower nature rather than his higher nature. Compare the Biblical appeal of heaven to the Quranic appeal of heaven.
Matthew 5:10-12, 10. Blessed are they which are persecuted for righteousness' sake: for theirs is the kingdom of heaven. 11 Blessed are ye, when men shall revile you, and persecute you, and shall say all manner of evil against you falsely, for my sake. 12 Rejoice, and be exceeding glad: for great is your reward in heaven: for so persecuted they the prophets which were before you.
Peter 1:3-4, 3. Blessed be the God and Father of our Lord Jesus Christ, which according to his abundant mercy hath begotten us again unto a lively hope by the resurrection of Jesus Christ from the dead, 4 To an inheritance incorruptible, and undefiled, and that fadeth not away, reserved in heaven for you,
Mark 12:24-25, 24 And Jesus answering said unto them, Do ye not therefore err, because ye know not the scriptures, neither the power of God? 25 For when they shall rise from the dead, they neither marry, nor are given in marriage; but are as the angels which are in heaven.
Revelation 7:9-17, 9. After this I beheld, and, lo, a great multitude, which no man could number, of all nations, and kindreds, and people, and tongues, stood before the throne, and before the Lamb, clothed with white robes, and palms in their hands; 10 And cried with a loud voice, saying, Salvation to our God which sitteth upon the throne, and unto the Lamb. 11 And all the angels stood round about the throne, and about the elders and the four beasts, and fell before the throne on their faces, and worshipped God, 12 Saying, Amen: Blessing, and glory, and wisdom, and thanksgiving, and honour, and power, and might, be unto our God for ever and ever. Amen. 13 And one of the elders answered, saying unto me, What are these which are arrayed in white robes? and whence came they? 14 And I said unto him, Sir, thou knowest. And he said to me, These are they which came out of great tribulation, and have washed their robes, and made them white in the blood of the Lamb. 15 Therefore are they before the throne of God, and serve him day and night in his temple: and he that sitteth on the throne shall dwell among them. 16 They shall hunger no more, neither thirst any more; neither shall the sun light on them, nor any heat. 17 For the Lamb which is in the midst of the throne shall feed them, and shall lead them unto living fountains of waters: and God shall wipe away all tears from their eyes.
Qur’an 37: 40. But the sincere (and devoted) Servants of Allah, 41. For them is a Sustenance Determined, 42. Fruits (Delights) and they (Shall enjoy) honor and dignity, 43. In Gardens of Felicity, 44. Facing each other On Thrones (of dignity): 45. Round will be passed To them a Cup From a clear flowing fountain, 46. Crystal white, of a taste Delicious to those Who drink (thereof), 47. Free from headiness; Nor will they suffer Intoxication there from. 48. And beside them will be Chaste women, restraining Their glances, with big eyes (Of wonder and beauty) 49. As if they were (Delicate) eggs closely guarded.
Qur’an 4:57. But those who believe And do deeds of righteousness, We shall soon admit to Gardens, With rivers flowing beneath, - Their eternal home; Therein shall they have Companions [wives, NR] pure and holy; We shall admit them To shades, cool and ever deepening.
Qur’an 44:51. As to the Righteous (They will be) in A position of Security, 52. Among Gardens and Springs; 53. Dressed in fine silk And in rich brocade, They will face each other; 54. So; and We shall Join them to Companions With beautiful big And lustrous eyes. 55. There can they call For every kind of fruit In peace and security; 56. Nor will they there Taste Death, except the first Death: and He will preserve Them from the Penalty Of the Blazing Fire.