'Says' in the Bible

"Go and say to David my servant, 'Thus says Yahweh, "You [are] not to build a house for me to live [in],

So now, thus you shall say to my servant David, 'Thus says Yahweh of hosts, "I took you from the pasture, from following the sheep, to be leader over my people Israel,

"Go, you must speak to David, saying, 'Thus says Yahweh: "Three [choices] I offer to you. Choose one of them for yourself that I will do to you." '"

So Gad came to David and said to him, "Thus says Yahweh: 'Choose for yourself: