'Mournfully' in the Bible

"'Do not weep for the king who was killed. Do not grieve for him. But weep mournfully for the king who has gone into exile. For he will never return to see his native land again.

I have indeed heard the people of Israel say mournfully, 'We were like a calf untrained to the yoke. You disciplined us and we learned from it. Let us come back to you and we will do so, for you are the Lord our God.