Thanks for not getting all defensive @PickyPicky.
I personally cannot imagine why or how anyone would or could have any kind of moral compass without believing in, at least, some sort of higher power. It just doesn’t make any sense in my mind. And I mean that quite honestly.
Regarding helping the suffering. I would say that Christianity, as I’m sure you are well aware, is based on love. We are not commanded only to love God but also to love others. Just two of many scriptural passages I would mention are:
“If any man say, I love God, and hateth his brother; he is a liar. For he that loveth not his brother, whom he seeth, how can he love God, whom he seeth not? And this commandment we have from God, that he, who loveth God, love also his brother.” (1 John 4: 20-22)
“A new commandment I give unto you: That you love one another, as I have loved you, that you also love one another. By this shall all men know that you are my disciples, if you have love one for another.” (John 13: 34-35)
Therefore by helping the suffering, we are obeying Christ and fulfilling our Christian duty. We help them because we love them as our neighbour which is “Christ’s teaching” whether we remember it in the moment or not.
We also feel “empathy” for them because we are called to see Christ in every person - especially, as Blessed Theresa of Calcutta said, “in the disguise of the poor”.