Many know John 14:6 where Jesus says He is the way, the truth, and the life. No one gets to our Heavenly Father except through Him. That’s clear.
In Acts, Peter makes it pretty clear that’s what he believes as well. He tells the religious people, upset because God healed someone through Peters faith prayer,
“Nor is there salvation in any other, for there is no other name under heaven given among men by which we must be saved.”