Dear friend
You will remember the passage in the Bible where the Apostles came back to Jesus saying that some people who were NOT ONE OF THEM were casting out demons in Jesus’ name. Jesus said to leave them and let them continue what they were doing in His Name as anyone who is for Jesus is not against Him and anyone who is not for Jesus is against Him. I’m not good at remembering chapter and verse numbers but I know the Sacred Scripture and this passage from Sacred Scripture tells me that Jesus is not against other faiths in Him, but of course from His prayer in the Garden of Gethsemane, He desires we are to be all one in the fullness of Truth which is the Catholic Church.
It is not a sin to attempt to convert someone to faith in Jesus. Though it is foolish to attempt to convert someone, only the Holy Spirit converts hearts, minds and souls. We can only spread the word of God firstly by our life and how we live it and secondly by explaining the Gospel to other people. I have had people attempt to convert me to Islam, Jehovah Witness, Baptist and Church of England, I saw all of this as that they cared for my soul and asked the Holy Spirit to Bless them and Who will convict them with the fullness of Truth which is the Catholic Church.
The Holy Spirit convicts the conscience and we have a responsibility to develop our consciences, if these people truly believe what they believe then they have to act to the truths of that faith and their conscience is convicted by that. They mean no harm, they are doing what they believe is right and that is all a person can do. There is no sin in that.
The only occassion a sin may occur is if a person would enforce a faith onto someone, bully them into it against their will or persist in trying to convert someone when they have clearly expressed that they are not interested. That creates intolerance and destroys peace, that is not of Christ Jesus. Keeping the peace and being tolerant of other belief systems must not be mistaken with approval of them, but we must be respectful of the free will of all men and women.
In keeping the peace and being tolerant of other belief systems the lines of communication remain open where the Holy Spirit will convict souls and there is then hope for a future where we are all one in Christ Jesus.
God Bless you and much love and peace to you
Teresa