"And Abram journeyed, going on still toward the South" – If one is "going on" – increasingly fulfilling commandments and good deeds in this world, the Holy One blessed be He returns the wealth one gave to charity… but if in "going on" one is decreasing in the fulfilling of commandments and charity, one's wealth is also "going on still towards the South". Just like the son of a pious man who gives the tithe of his field with a poor attitude, subtracting every year: the Holy One, blessed be He, subtracts from his wealth until only a tenth of what he would give is left for him…
Furthermore, concerning one who is hosting guests. If he is "going on" –is excessive in his meal, and eats meat and fowl and fish – the guest becomes embarrassed and does not return to his home again – "going on still". But if he prepares a small meal of rice and beans, and various vegetables, "going", as in "decreasing" – the guest is not as embarrassed and, "going on", returns once again.