NET
12 If you are wise, you are wise to your own advantage, but if you have mocked, you alone must bear it.
Darby
12 If thou art wise, thou shalt be wise for thyself; and if thou scornest, thou alone shalt bear it.
KJV
12 If thou be wise, thou shalt be wise for thyself: but [if] thou scornest, thou alone shalt bear [it].