OT.filter - nkjv solemnly:

nkjv@Genesis:43:3 @ But Judah spoke to him, saying, "The man solemnly warned us, saying, "You shall not see my face unless your brother is with you.'

nkjv@1Samuel:8:9 @ Now therefore, heed their voice. However, you shall solemnly forewarn them, and show them the behavior of the king who will reign over them."