People of other faiths who truly believe that they are pursuing God are going to hell. How do I deal with this in terms of telling people that my God is loving and just?
While this is surely a heartfelt question, its answer is quite blunt and to the point. When I think of it, the crime of treason comes to mind, which is the act of attempting to betray or overthrow a government by your words and actions. Suppose for example that I am a citizen of a good country, and as such, I am subject to my government’s laws and rules which are put in place to protect and preserve me, because those in power genuinely care for me. That is the love part. But if I come to believe that my government is for one reason or another evil, and as a result decide to serve a small terrorist organization by speaking negatively about my country, recruiting allies to aid me and acting against the government that I am under as an attempt to overthrow them, I will be found guilty of treason and subsequently put to death. That is the justice part.
I believe that this could be how God sees things. Those who fall subject to beliefs that speak and act against the only true authority in power will likewise see the same punishment. The bad news is that in God’s eyes, we are all criminals guilty of treason (Romans 3:23), but unlike the judicial system, he has offered to forgive us of our crimes if we would decide to only serve him and reject the false beliefs that the world has made up (John 3:16; Romans 10:9; Ephesians 2:8). If we do not however, our guilty verdict stands and we will pay the penalty for our crimes when we stand before the judge in the end (Romans 6:23, 14:12; Hebrews 4:13).