The Apostle Paul wrote:

2Corinthians 6:14-18 Be ye not unequally yoked together with unbelievers: for what fellowship hath righteousness with unrighteousness? and [...]]]> The Christian faith, I am proposing, should become (in the name of Jesus Christ) a welcome friend to other religions of the world, not a threat”
–Brian McLaren, A Generous Orthodoxy McLaren, p.254

The Apostle Paul wrote:

2Corinthians 6:14-18 Be ye not unequally yoked together with unbelievers: for what fellowship hath righteousness with unrighteousness? and what communion hath light with darkness?  (15)  And what concord hath Christ with Belial? or what part hath he that believeth with an infidel?  (16)  And what agreement hath the temple of God with idols? for ye are the temple of the living God; as God hath said, I will dwell in them, and walk in them; and I will be their God, and they shall be my people.  (17)  Wherefore come out from among them, and be ye separate, saith the Lord, and touch not the unclean thing; and I will receive you.  (18)  And will be a Father unto you, and ye shall be my sons and daughters, saith the Lord Almighty.

Brian McLaren wrote:

This is how I feel when I’m offered a choice between the roads of exclusivism (only confessing Christians go to heaven), universalism (everyone goes to heaven), and inclusivism (Christians go to heaven, plus at least some others). Each road takes you somewhere, to a place with some advantages and disadvantages, but none of them is the road of my missional calling: blessed in this life to be a blessing to everyone on earth.”
–Brian McLaren, A Generous Orthodoxy McLaren, p. 113

The Apostle John wrote:

John 14:6 Jesus saith unto him, I am the way, the truth, and the life: no man cometh unto the Father, but by me.

Paul wrote:

Romans 15:5-6 Now the God of patience and consolation grant you to be likeminded one toward another according to Christ Jesus:  (6)  That ye may with one mind and one mouth glorify God, even the Father of our Lord Jesus Christ.

Jesus Christ declared:

Matthew 7:12-14 Therefore all things whatsoever ye would that men should do to you, do ye even so to them: for this is the law and the prophets.  (13)  Enter ye in at the strait gate: for wide is the gate, and broad is the way, that leadeth to destruction, and many there be which go in thereat:  (14)  Because strait is the gate, and narrow is the way, which leadeth unto life, and few there be that find it.

We need to bless others in that our conversation (life) should glorify God. However, blessing others does them no good, if they do not come to the Lord Jesus Christ for salvation. Feeding others (which is a good thing to do) takes care of their temporary problem, but when you give them the Gospel of Jesus Christ, that takes care of their eternal life!

Jesus Christ also said:

Matthew 7:15  Beware of false prophets, which come to you in sheep’s clothing, but inwardly they are ravening wolves.