The word salt is mentioned 57 times in the canon of 66 https://biblescan.com/searchmore.php?q=salt

Hebrew OT Melach - Strongs 4417 28 times

Genesis 14:8 Genesis 14:10 Genesis 14:3 Genesis 19:26

Exodus 30:35

Leviticus 2:13 Leviticus 11:9 Leviticus 24:7

Numbers 18:19 Numbers 34:3 Numbers 34:12

Deuteronomy 3:17 Deuteronomy 29:23

Job 6:6 Job 30:4 Job 39:6

Joshua 3:16 Joshua 11:8 Joshua 12:3 Joshua 15:2 Joshua 15:5 Joshua 15:62 Joshua 16:8 Joshua 18:19

Judges 9:45 2 Samuel 8:13 2 Kings 2:20-21 2 Kings 14:7 1 Chronicles 18:12 2 Chronicles 13:5 2 Chronicles 25:11

Psalm 59:17 Psalm 60:1 Psalm 107:34 Psalm 141:4

Proverbs 25:20

Ezekiel 16:4 Ezekiel 43:24 Ezekiel 47:8-9 Ezekiel 47:11

Jeremiah 17:6 Jeremiah 48:9

Zephaniah 2:9

Isaiah 30:24

Ezra 4:14 Ezra 6:9 Ezra 7:22

Halas / hala - Strongs 217 Matthew 5:13 [2x] Mark 9:50 Luke 14:34 - 35 Colossians 4:6

Halizo - Strongs 233 Matthew 5:13 [1x] Mark 9:49 Halukos - Strongs 252 James 3:11- 12