QUESTIONS:

According to Ezekiel 9:4, the Lord said to him, "Go through the midst of the city, through the midst of Jerusalem, and place a mark on the forehead the men who sigh and cry over all the abominations that are done within it." Is this mark the same mark as the beast? Or something different? Revelation 13, Ephesians 1, Revelation 7

Do I have to believe in Young Earth Creationism to be saved, or to be a good Christian?

My understanding is that when Jesus was on Earth, he was fully God and fully man. Did he do the miracles that he did as God, or as a man in relationship with the Father, showing what believers can and should in in a relationship with the Father? Genesis 1:2-3

Are Mormons necessarily could be saved and remain within the Mormon Church? John 3:16-17