I know a number of people who believe that all religions lead to the same place and that it is possible to get to know God and find salvation through a multitude of faiths (including Judaism, Christianity, Islam, Buddhism, etc, etc.). This sounds very nice and comforting as such a notion convinces folk that they can all be saved by whatever way they want to be saved. However, if we believe that God is true and that we didn't all originate from a primordial soup; but are living beings designed by a supremely intelligent Creator, then there has to be such a thing as God's Truth; and an Almighty God capable of such vast creative ability and who is perfectly capable of revealing His Saving Truth to humanity.
If we believe that other religions are compatible with Christianity, then we have to call Jesus a liar. Let me illustrate: -
Matt. 11:27, "All things have been handed over to me by my Father, and no one knows the Son except the Father, and no one knows the Father except the Son and anyone to whom the Son chooses to reveal him."
John 6:44, "No one can come to me unless the Father who sent me draws him. And I will raise him up on the last day."
John 14:6, "Jesus said to him, “I am the way, and the truth, and the life. No one comes to the Father except through me."
We would also have to call the Apostle Paul a liar. For example he declares that there is no other Gospel (good news of the Kingdom and salvation in Christ), "I am astonished that you are so quickly deserting him who called you in the grace of Christ and are turning to a different gospel— not that there is another one, but there are some who trouble you and want to distort the gospel of Christ. But even if we or an angel from heaven should preach to you a gospel contrary to the one we preached to you, let him be accursed. As we have said before, so now I say again: If anyone is preaching to you a gospel contrary to the one you received, let him be accursed." (Gal. 1:6.)
"But I am afraid that as the serpent deceived Eve by his cunning, your thoughts will be led astray from a sincere and pure devotion to Christ. For if someone comes and proclaims another Jesus than the one we proclaimed, or if you receive a different spirit from the one you received, or if you accept a different gospel from the one you accepted, you put up with it readily enough..." 2 Cor. 11:3.
"There is one body and one Spirit—just as you were called to the one hope that belongs to your call— one Lord, one faith, one baptism, one God and Father of all, who is over all and through all and in all." (Eph. 4:4.)
"If anyone teaches a different doctrine and does not agree with the sound words of our Lord Jesus Christ and the teaching that accords with godliness, he is puffed up with conceit and understands nothing..." (1 Tim. 6:3.)
"Avoid the irreverent babble and contradictions of what is falsely called 'knowledge', for by professing it some have swerved from the faith." (1 Tim. 6:20.)
And specifically considering the notion of finding salvation via the plethora of 'gods' from the multitudinous faiths, "This is good, and it is pleasing in the sight of God our Saviour, who desires all people to be saved and to come to the knowledge of the truth. For there is one God, and there is one mediator between God and men, the man Christ Jesus, who gave himself as a ransom for all, which is the testimony given at the proper time." (1 Tim. 2:3.)
So while followers of Christ would be kind, gentle, caring and respectful to people of other faiths (keeping in mind the words in 1 Peter 3:15, "in your hearts honour Christ the Lord as holy, always being prepared to make a defence to anyone who asks you for a reason for the hope that is in you; yet do it with gentleness and respect..."); as Bible-believers they would not consider salvation by any means other than the good news the establishment of God's Kingdom with Christ ruling on the Earth, with the resurrection of the faithful to be blessed with immortal bodies to be part this Kingdom. There can therefore be no compatibility between following the Scriptures and religious texts of other religions.