Revelation 22:17

And the Spirit and the bride say, “Come!”  And let him who hears say, “Come!”  And let him who thirsts come.  Whoever desires, let him take the water of life freely.

        

Psalm 34:11  Come, you children, listen to me; I will teach you the fear of the LORD.

Isaiah 55:1  Ho!  Everyone who thirsts, come to the waters; and you who have no money, come, buy and eat.  Yes, come, buy wine and milk without money and without price.