16 On that day they will say to Jerusalem, “Do not fear, Zion; do not let your hands hang limp.

Read Zephaniah 3:16 Using Other Translations

In that day it shall be said to Jerusalem, Fear thou not: and to Zion, Let not thine hands be slack.
On that day it shall be said to Jerusalem: "Fear not, O Zion; let not your hands grow weak.
On that day the announcement to Jerusalem will be, “Cheer up, Zion! Don’t be afraid!