John 4:24 "God is spirit, and those who worship Him must worship Him in spirit and truth." (Jesus Speaking)
John 14:6-7 "Jesus said to him, 'I am the way, the truth and the life; no one comes to the Father, but through me. If you had known me, you would have known My Father also.'"
John 1:18 "No man has seen God at any time; the only begotten God, who is in the bosom of the Father, He has explained Him."
(John 3:16) "God so loved the world that He gave His only begotten Son, that whoever believes in Him should not perish but have eternal life."
The same God?
Yes.
The Scriptures you quoted actually prove the point.
FYI, the Bible is part of the sacred writings of Muslims.
Just because the Muslims have an additional book, like the Mormons, does not mean that they reject the Bible.