"Neither is there salvation in any other: for there is none other name under heaven given among men, whereby we must be saved." (Acts 4:12)
"He that hath the Son hath life; and he that hath not the Son of God hath not life." (1 John 5:12)
These are but few verses that point to the fact that Christ is the only way to Heaven. Salvation is given to us exclusively through Jesus Christ. There can be no other Savior than Jesus. The first verse, for example, is a direct quote from the lips of Jesus Christ. Thomas was asking about the way, and Jesus answered him plainly that He is THE way. Jesus made a very clear point: no man cometh unto the Father, BUT BY HIM. Many today would disagree with that. They mine as well tell Jesus that He had no clue what He was talking about. We read in the context that Thomas wanted to know 'The way' and also how Philip wanted to see the Father. In both response to these men Christ reveals to them that He alone is sufficient. Christ is the way and to see Christ is to have seen the Father (see John 14: 10-13).