Verses with the word vex in the Old Testament (14 verses):

Exodus 22:21
Thou shalt neither vex a stranger, nor oppress him: for ye were strangers in the land of Egypt.

Leviticus 18:18
Neither shalt thou take a wife to her sister, to vex her, to uncover her nakedness, beside the other in her life time.

Leviticus 19:33
And if a stranger sojourn with thee in your land, ye shall not vex him.

Numbers 25:17
Vex the Midianites, and smite them:

Numbers 25:18
For they vex you with their wiles, wherewith they have beguiled you in the matter of Peor, and in the matter of Cozbi, the daughter of a prince of Midian, their sister, which was slain in the day of the plague for Peor's sake.

Numbers 33:55
But if ye will not drive out the inhabitants of the land from before you; then it shall come to pass, that those which ye let remain of them shall be pricks in your eyes, and thorns in your sides, and shall vex you in the land wherein ye dwell.

2 Samuel 12:18
And it came to pass on the seventh day, that the child died. And the servants of David feared to tell him that the child was dead: for they said, Behold, while the child was yet alive, we spake unto him, and he would not hearken unto our voice: how will he then vex himself, if we tell him that the child is dead?

2 Chronicles 15:6
And nation was destroyed of nation, and city of city: for God did vex them with all adversity.

Job 19:2
How long will ye vex my soul, and break me in pieces with words?

Psalms 2:5
Then shall he speak unto them in his wrath, and vex them in his sore displeasure.

Isaiah 7:6
Let us go up against Judah, and vex it, and let us make a breach therein for us, and set a king in the midst of it, even the son of Tabeal:

Isaiah 11:13
The envy also of Ephraim shall depart, and the adversaries of Judah shall be cut off: Ephraim shall not envy Judah, and Judah shall not vex Ephraim.

Ezekiel 32:9
I will also vex the hearts of many people, when I shall bring thy destruction among the nations, into the countries which thou hast not known.

Habakkuk 2:7
Shall they not rise up suddenly that shall bite thee, and awake that shall vex thee, and thou shalt be for booties unto them?