Strong's numbers

חָזַק (H2388)

châzaq

khaw-zak'

a primitive root; to fasten upon; hence, to seize, be strong (figuratively, courageous, causatively strengthen, cure, help, repair, fortify), obstinate; to bind, restrain, conquer; aid, amend, [idiom] calker, catch, cleave, confirm, be constant, constrain, continue, be of good (take) courage(-ous, -ly), encourage (self), be established, fasten, force, fortify, make hard, harden, help, (lay) hold (fast), lean, maintain, play the man, mend, become (wax) mighty, prevail, be recovered, repair, retain, seize, be (wax) sore, strengthen (self), be stout, be (make, shew, wax) strong(-er), be sure, take (hold), be urgent, behave self valiantly, withstand.

Brown–Driver–Briggs

חָזַק 291 vb. be or grow firm, strong, strengthen

Qal

I intrans. be or grow strong

II transit. only strengthened him not

Pi.

1 make strong (physically)

2 strengthen the hands (acc.) of anyone, sustain, encourage

3 make strong = bold, encourage

4 make firm

5 make rigid, hard, i.e. perverse, obstinate, harden

Hiph.

a make strong, strengthen

b make firm, the kingdom

c display strength

2 make severe, of battle

3 support

4 = repair

5 prevail

6 esp. take or keep hold of, seize, grasp

Hithp.

1 strengthen oneself

2 put forth strength, use one's strength

3 withstand

4 hold strongly with

From Brown, Driver, and Briggs, A Hebrew and English Lexicon of the Old Testament (1906), in the public domain.

266 occurrences

Shown in the King James Version (KJV), whichever translation you read in — it is the text these numbers are tagged against.

2 Chronicles 32:7
Be strong and courageous, be not afraid nor dismayed for the king of Assyria, nor for all the multitude that is with him: for there be more with us than with him:
2 Chronicles 34:8
Now in the eighteenth year of his reign, when he had purged the land, and the house, he sent Shaphan the son of Azaliah, and Maaseiah the governor of the city, and Joah the son of Joahaz the recorder, to repair the house of the LORD his God.
2 Chronicles 34:10
And they put it in the hand of the workmen that had the oversight of the house of the LORD, and they gave it to the workmen that wrought in the house of the LORD, to repair and amend the house:
2 Chronicles 35:2
And he set the priests in their charges, and encouraged them to the service of the house of the LORD,
Ezra 1:6
And all they that were about them strengthened their hands with vessels of silver, with gold, with goods, and with beasts, and with precious things, beside all that was willingly offered.
Ezra 6:22
And kept the feast of unleavened bread seven days with joy: for the LORD had made them joyful, and turned the heart of the king of Assyria unto them, to strengthen their hands in the work of the house of God, the God of Israel.
Ezra 7:28
And hath extended mercy unto me before the king, and his counsellors, and before all the king's mighty princes. And I was strengthened as the hand of the LORD my God was upon me, and I gathered together out of Israel chief men to go up with me.
Ezra 9:12
Now therefore give not your daughters unto their sons, neither take their daughters unto your sons, nor seek their peace or their wealth for ever: that ye may be strong, and eat the good of the land, and leave it for an inheritance to your children for ever.
Ezra 10:4
Arise; for this matter belongeth unto thee: we also will be with thee: be of good courage, and do it.
Nehemiah 2:18
Then I told them of the hand of my God which was good upon me; as also the king's words that he had spoken unto me. And they said, Let us rise up and build. So they strengthened their hands for this good work.