Zephaniah 3:16

"In that day it shall be said to Jerusalem, Fear thou not: and to Zion, Let not thine hands be slack."

Cross References (ranked by relevance)

Hebrews 12:12

Wherefore lift up the hands which hang down, and the feeble knees;

Ephesians 3:13

Wherefore I desire that ye faint not at my tribulations for you, which is your glory.

Isaiah 41:10

Fear thou not; for I am with thee: be not dismayed; for I am thy God: I will strengthen thee; yea, I will help thee; yea, I will uphold thee with the right hand of my righteousness.

Galatians 6:9

And let us not be weary in well doing: for in due season we shall reap, if we faint not.

2 Corinthians 4:1

Therefore seeing we have this ministry, as we have received mercy, we faint not;

Revelation 2:3

And hast borne, and hast patience, and for my name’s sake hast laboured, and hast not fainted.

Isaiah 44:2

Thus saith the LORD that made thee, and formed thee from the womb, which will help thee; Fear not, O Jacob, my servant; and thou, Jesurun, whom I have chosen.

John 12:12

On the next day much people that were come to the feast, when they heard that Jesus was coming to Jerusalem,

Zechariah 8:15

So again have I thought in these days to do well unto Jerusalem and to the house of Judah: fear ye not.

Isaiah 40:9

O Zion, that bringest good tidings, get thee up into the high mountain; O Jerusalem, that bringest good tidings, lift up thy voice with strength; lift it up, be not afraid; say unto the cities of Judah, Behold your God!

Job 4:3

Behold, thou hast instructed many, and thou hast strengthened the weak hands.

Isaiah 54:4

Fear not; for thou shalt not be ashamed: neither be thou confounded; for thou shalt not be put to shame: for thou shalt forget the shame of thy youth, and shalt not remember the reproach of thy widowhood any more.