Job 39:9-12 KJV
[9] Will the unicorn be willing to serve thee, or abide by thy crib? [10] Canst thou bind the unicorn with his band in the furrow? or will he harrow the valleys after thee? [11] Wilt thou trust him, because his strength is great? or wilt thou leave thy labour to him? [12] Wilt thou believe him, that he will bring home thy seed, and gather it into thy barn?