After solemnizing their covenant, Pastor Cosand announced their changed names:
In a similar way, God announced His covenant with Abram by altering his name.
As for me, behold, my covenant [is] with thee,
and thou shalt be a father of many nations.
Neither shall thy name any more be called Abram, but thy name shall be Abraham;
for a father of many nations have I made thee. Genesis 17:4-5