Bible passage on new name

You're likely thinking of the passage in the Bible where God gives a new name to someone. One famous example is in Genesis 17:5-16, where God renames Abram to Abraham:

"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 17:5, KJV)

In this passage, God makes a covenant with Abram, promising to make him the father of a great nation. As part of this covenant, God changes Abram's name to Abraham, which means "father of many nations."

Another example is in Isaiah 62:2-4, where God gives a new name to the city of Jerusalem:

"For Zion's sake I will not hold my peace, and for Jerusalem's sake I will not rest, until the righteousness thereof go forth as a light, and the salvation thereof as a lamp that burneth. And the Gentiles shall see thy righteousness, and all kings thy glory: and thou shalt be called by a new name, which the mouth of the Lord shall name. For thou shalt not be forsaken, neither thy children be forsaken from me: but thou shalt be forsaken, and I will forsake thee, saith the Lord, and thou shalt be no more, till I have consumed thee." (Isaiah 62:1-4, KJV)

In this passage, God promises to give Jerusalem a new name, which will be revealed by God himself. This new name is a symbol of God's redemption and restoration of the city.

These passages illustrate the biblical concept of renaming as a symbol of transformation, covenant, and redemption.