It is perhaps better that the Prophet Muhammad (pbuh) himself explain how Muslims view earlier Prophets like Jesus, Moses and Abraham (pbut).
Abu Huraira reports that the Prophet Muhammad (pbuh) said:
“My position, in relation to the prophets who came before me, can be explained in the following example: ‘A man erected a building and adorned his edifice with great beauty, but he left an empty niche in the corner, where just one brick was missing. People looked around the building and marveled at its beauty, but wondered why a brick was missing from that niche! I am like unto that one missing brick and I am the last in line of the prophets.’” (Reported by Bukhari and Muslim.)
Therefore, the Message that the Prophet Muhammad (pbuh) brought is only a continuation of the revelations brought by earlier Prophets and the deen (way of life) of Islam has been completed and is perfect in the eyes of God as told in Surah 5:3 of the Qur’an:
“This day have I perfected your religion for you, completed My favour upon you, and have chosen for you Islam as your religion.”
And so then, if the Creator Himself has said that Islam is perfect and has promised to preserve it till the Day of Judgment, then who are the creations to disagree with Him?
And my own view of the Qur’an with regard to the Bible and all other earlier scriptures is like this:
Why read last week’s newspaper when today’s edition has just been delivered to your door-step?
Why refer to an old obsolete book which has many of it’s pages either missing, torn or defaced to the point of being unreadable when the very latest complete and revised edition of the book by the very same author is now available at your neighbourhood bookstore?