Leviticus 23:40
And you shall take you on the first day the boughs of goodly trees, branches of palm trees, and the boughs of thick trees, and willows of the brook; and you shall rejoice before the LORD your God seven days.
Nave's Topical Index—AKJV

Psalm 137:2
We hanged our harps on the willows in the middle thereof.
Nave's Topical Index—AKJV

Ezekiel 17:5
He took also of the seed of the land, and planted it in a fruitful field; he placed it by great waters, and set it as a willow tree.
Nave's Topical Index—AKJV