Verses with the word gain in the Old Testament (13 verses):

Judges 5:19
The kings came and fought, then fought the kings of Canaan in Taanach by the waters of Megiddo; they took no gain of money.

Job 22:3
Is it any pleasure to the Almighty, that thou art righteous? or is it gain to him, that thou makest thy ways perfect?

Proverbs 1:19
So are the ways of every one that is greedy of gain; which taketh away the life of the owners thereof.

Proverbs 3:14
For the merchandise of it is better than the merchandise of silver, and the gain thereof than fine gold.

Proverbs 15:27
He that is greedy of gain troubleth his own house; but he that hateth gifts shall live.

Proverbs 28:8
He that by usury and unjust gain increaseth his substance, he shall gather it for him that will pity the poor.

Isaiah 33:15
He that walketh righteously, and speaketh uprightly; he that despiseth the gain of oppressions, that shaketh his hands from holding of bribes, that stoppeth his ears from hearing of blood, and shutteth his eyes from seeing evil;

Isaiah 56:11
Yea, they are greedy dogs which can never have enough, and they are shepherds that cannot understand: they all look to their own way, every one for his gain, from his quarter.

Ezekiel 22:13
Behold, therefore I have smitten mine hand at thy dishonest gain which thou hast made, and at thy blood which hath been in the midst of thee.

Ezekiel 22:27
Her princes in the midst thereof are like wolves ravening the prey, to shed blood, and to destroy souls, to get dishonest gain.

Daniel 2:8
The king answered and said, I know of certainty that ye would gain the time, because ye see the thing is gone from me.

Daniel 11:39
Thus shall he do in the most strong holds with a strange god, whom he shall acknowledge and increase with glory: and he shall cause them to rule over many, and shall divide the land for gain.

Micah 4:13
Arise and thresh, O daughter of Zion: for I will make thine horn iron, and I will make thy hoofs brass: and thou shalt beat in pieces many people: and I will consecrate their gain unto the LORD, and their substance unto the Lord of the whole earth.