Verses with the word heaviness in the Old Testament (9 verses):

Ezra 9:5
And at the evening sacrifice I arose up from my heaviness; and having rent my garment and my mantle, I fell upon my knees, and spread out my hands unto the LORD my God,

Job 9:27
If I say, I will forget my complaint, I will leave off my heaviness, and comfort myself:

Psalms 69:20
Reproach hath broken my heart; and I am full of heaviness: and I looked for some to take pity, but there was none; and for comforters, but I found none.

Psalms 119:28
My soul melteth for heaviness: strengthen thou me according unto thy word.

Proverbs 10:1
The proverbs of Solomon. A wise son maketh a glad father: but a foolish son is the heaviness of his mother.

Proverbs 12:25
Heaviness in the heart of man maketh it stoop: but a good word maketh it glad.

Proverbs 14:13
Even in laughter the heart is sorrowful; and the end of that mirth is heaviness.

Isaiah 29:2
Yet I will distress Ariel, and there shall be heaviness and sorrow: and it shall be unto me as Ariel.

Isaiah 61:3
To appoint unto them that mourn in Zion, to give unto them beauty for ashes, the oil of joy for mourning, the garment of praise for the spirit of heaviness; that they might be called trees of righteousness, the planting of the LORD, that he might be glorified.