However, the truth is that all religions are fundamentally different and only superficially the same (basically meaning that all religions point towards the existence of a God, but they do not speak of the same God).

If all religions were the same, then they would not be so many contractions in the beliefs that each faith holds. They would, in fact, proclaim a more consistent nature of God. 

Others even point out that all religions are similar because they all teach ethics. 

The truth is that other world religions centrally seek to help bad people become better by adopting better personal ethics. But, on the other hand, Christianity invites spiritually dead people to become spiritually alive.

John 3:5 (NKJV)

Jesus answered, “Most assuredly, I say to you, unless one is born of water and the Spirit, he cannot enter the kingdom of God.

So how does one become spiritually alive?

This is accomplished solely through Jesus’ sacrificial death. When we trust in Christ our sins are attributed to Him and His righteousness is attributed to us. This righteousness then makes justified (in right standing with God), and enables us to be indwelled with the Holy Spirit making us spiritually alive. 

2 Corinthians 5:21 (NKJV)

For He made Him who knew no sin to be sin for us, that we might become the righteousness of God in Him.

Jesus claimed that what He said took precedence over all other teachings. Therefore, He alone is humanity’s only means of salvation. 

John 14:6 (NKJV)

Jesus said to him, “I am the way, the truth, and the life. No one comes to the Father except through Me.

Jesus also warned about those who would try to set forth a different Christ.

Matthew 24:4-5 (NKJV)

4. And Jesus answered and said to them: 

“Take heed that no one deceives you.

5.For many will come in My name, saying, 

‘I am the Christ,’ and will deceive many.

In conclusion, we don’t have to go very far to see how various religions teach us different views about God. 

If Jesus was right (as Christians believe), then others are wrong.