Salvation requires faith in the true God, the God described by the authentic Scripture. If we do not believe in the God of the Scripture, then we are not saved by the God of the Scripture. Every god defines his/her/its own terms of salvation. The God of the pure unabridged Scriptures defines His terms too. If we do not like His salvation plan, we are free to construct our own god from the parts of the scripture we find convenient to our lifestyle and philosophy. But, make no mistake, that god is NOT the God of the Bible.
There should be no arrogance and pride involved when witnessing for Christ… we are to behave with gentleness and respect in all we say and do towards unbelievers. We should not 'beat the unsaved about the head' with the Word of God, but rather present it with love and caring.