Samson had seven locks as part of his Nazarite vow

Judges 13:5

“For, lo, thou shalt conceive, and bear a son; and no razor shall come on his head: for the child shall be a Nazarite unto God from the womb: and he shall begin to deliver Israel out of the hand of the Philistines.”

Numbers 6:5

“All the days of the vow of his separation there shall no razor come upon his head: until the days be fulfilled, in the which he separateth himself unto the LORD, he shall be holy, and shall let the locks of the hair of his head grow.”

Judges 16:13

“And Delilah said unto Samson, Hitherto thou hast mocked me, and told me lies: tell me wherewith thou mightest be bound. And he said unto her, If thou weavest the seven locks of my head with the web.”

Judges 16:19

“And she made him sleep upon her knees; and she called for a man, and she caused him to shave off the seven locks of his head; and she began to afflict him, and his strength went from him.”

Locks in Song of Solomon

Song of Solomon 4:1

“Behold, thou art fair, my love; behold, thou art fair; thou hast doves' eyes within thy locks: thy hair is as a flock of goats, that appear from mount Gilead.”

Song of Solomon 5:11

“His head is as the most fine gold, his locks are bushy, and black as a raven.”

Song of Solomon 6:7

“As a piece of a pomegranate are thy temples within thy locks.”

Ezekiel’s locks

Ezekiel 8:3

“And he put forth the form of an hand, and took me by a lock of mine head; and the spirit lifted me up between the earth and the heaven, and brought me in the visions of God to Jerusalem, to the door of the inner gate that looketh toward the north; where was the seat of the image of jealousy, which provoketh to jealousy.”

Hair like wool

Daniel 7:9

I beheld till the thrones were cast down, and the Ancient of days did sit, whose garment was white as snow, and the hair of his head like the pure wool: his throne was like the fiery flame, and his wheels as burning fire.

Revelation 1:14

“His head and his hairs were white like wool, as white as snow; and his eyes were as a flame of fire;”