Why should we help?
Because the Lord says so in His Word...
But whoever has this world’s goods, and sees his brother in need, and shuts up his heart from him, how does the love of God abide in him?
1 John 3:17 NKJV
15 If a brother or sister is naked and destitute of daily food, 16 and one of you says to them, “Depart in peace, be warmed and filled,” but you do not give them the things which are needed for the body, what does it profit?
James 2:15-16 NKJV
He who has pity on the poor lends to the Lord, and He will pay back what he has given.
Proverbs 19:17 NKJV