What does it mean to cast your bread upon the waters? If we cast our bread upon the water, will not the water take it away? How then will we find it after many days?

We cast our bread upon the water by doing good not only to those we know, but especially to those we do not know, for just as scripture reminds us, we do not know the way of the wind, or the works of God who sees and knows everything, and just as we help those in need, God will send someone to help us in our time of need, and therefore, your bread that you have cast upon the waters, will then be returned to you.