The appointed reading from the Hebrew scriptures this coming Sunday is Isaiah 43:1-7. One good hymn that goes with this passage is How Firm a Foundation. Another is the one above by the late Susan Peterson, which I discovered on the Cyberhymnal site. The tune (named after its composer) is also used for Near to the Heart of God (listen below).
But now thus says the Lord, he who created you, O Jacob, he who formed you, O Israel: Do not fear, for I have redeemed you; I have called you by name, you are mine. When you pass through the waters, I will be with you; and through the rivers, they shall not overwhelm you; when you walk through fire you shall not be burned, and the flame shall not consume you. For I am the Lord your God, the Holy One of Israel, your Savior. I give Egypt as your ransom, Ethiopia and Seba in exchange for you. Because you are precious in my sight, and honored, and I love you, I give people in return for you, nations in exchange for your life. Do not fear, for I am with you; I will bring your offspring from the east, and from the west I will gather you; I will say to the north, “Give them up,” and to the south, “Do not withhold; bring my sons from far away and my daughters from the end of the earth— everyone who is called by my name, whom I created for my glory, whom I formed and made.”