Undisfellowshipped
You asked,
Why would Paul say that we should pray and make intercessions for men who were destined for Hell with no chance of being saved? That does not make a lot of sense to me.
I believe all humans that ever lived, have received Gods common grace. To have life at all, is a blessing (or grace) from God, and so are all the blessings of this life. None of which anyone deserves.
But, only His children receive Gods' uncommon (or special) grace. This would be eternal life, with Him and the blessings that go with it.
How should we, who are his children, who have received his uncommon grace, live among other people? We do not know who God has chosen or who he will choose. Should we withhold grace, from people who may not receive it after this life? As we live among men, we should demonstrate Gods' love and grace, because it may be the only grace they receive. In their condemnation they will see that they received Gods' love and grace many times, and denied its source.
Paul shared your love for the lost, and he felt your pain, t his is why Paul was so heavy hearted in Romans 9:2-5 " That I have great heaviness and continual sorrow in my heart. For I could wish that myself were accursed from Christ for my brethren, my kinsmen according to the flesh: Who are Israelites; to whom pertaineth the adoption, and the glory, and the covenants, and the giving of the law, and the service of God , and the promises; Whose are the fathers, and of whom as concerning the flesh Christ came , who is over all, God blessed for ever. Amen." Paul knew that they were not all chosen, look at verse 6 "Not as though the word of God hath taken none effect. For they are not all Israel, which are of Israel:" Paul goes on to teach that Jews are just like everyone else, not everyone is a child of God. If you go on to read the rest of the chapter in that light, it takes on a new meaning for me.
I hope this makes some sense to you.
Take care of that cold!
D Dog