Assalam allaykom, I would like to ask you:- why did Islam came late why not the first and last?-why did the bible and taurat changed even though they are also books and words of god?

All perfect praise be to Allah, The Lord of the Worlds. I testify that there is none worthy of worship except Allah, and that Muhammad is His slave and Messenger.

The religion of all Messengers, from the first one to the last one, is Islam; which means to believe in the Oneness of Allah and to devote all acts of worship only to Him. Allah the Almighty Says (what means): {Indeed, the religion in the sight of Allah is Islam. And those who were given the Scripture did not differ except after knowledge had come to them – out of jealous animosity between themselves. And whoever disbelieves in the verses of Allah, then indeed, Allah is swift in [taking] account.} [Quran 3:19]

The Messengers differ only in the details of Sharee'ah and their partial rulings. Abu Hurairah narrated that the Prophet, sallallahu ‘alayhi wa sallam, said: “The Prophets are paternal brothers; their mothers are different, but their religion is one.” [Al-Bukhari and Muslim]

The Sharee’ah of the Prophet Muhammad, sallallahu ‘alayhi wa sallam, was the last one for the reason that he, sallallahu ‘alayhi wa sallam, is undoubtedly the seal of the Prophets, and his Sharee’ah is the seal of all Sharee’ahs. Allah the Almighty Says (what means): {Muhammad is not the father of [any] one of your men, but [he is] the Messenger of Allah and seal [i.e., last] of the prophets. And ever is Allah, of all things, Knowing.} [Quran 33:40]

Abu Hurairah narrated that the Messenger of Allah, sallallahu ‘alayhi wa sallam, said: “I have been favored over the Prophets by six: I have been given Jawami’ Al-Kalim (concise, eloquent, succinct, and meaningful words); I have been supported (for triumph) by terror (cast into the hearts of enemies); spoils of war have been made lawful for me; the earth has been made for me as a means of purification and a mosque; I was sent to all creation, and I am the seal of all Prophets.” [Muslim]

There are clear insights and pieces of wisdom in this regard: one of them is that this Sharee’ah is general for all humanity, unlike the previous Sharee’ahs which were exclusive to some nations. Hence, this Sharee’ah was the most appropriate one to be the last and the seal of all Sharee’ahs.

Similarly, this Sharee’ah is the most perfect of all Sharee’ahs, so it was wisdom to be the final Sharee’ah; due to its comprehensiveness and fulfillment of the needs and interests of humans at all different times, places, and conditions.

If we ponder more, we will find many other insights.

We apologize for not answering your other question. We have clearly stated in the question entry field that only one question is allowed to be sent at a time and that if many questions were asked, only the first question will be answered.

Allah knows best.