Slack he will not be slack to him that hateth him, Deut. 7:10. vow … thou shalt not slack to pay it, Deut. 23:21. How long are ye slack to go to possess the land, Josh. 18:3. becometh poor that dealeth with a slack hand, Prov. 10:4. Therefore the law is slacked, Hab. 1:4. Let not thine hands be slack, Zeph. 3:16. Lord is not slack concerning his promise, 2 Pet. 3:9. my strength slacken, because of mine afflictions, 2 Ne. 4:26. Have I slackened mine hand, Jacob 5:47.