Samuel

1 Samuel 19:24
Then Saul stripped off his robes and also prophesied before Samuel. And he collapsed and lay naked all that day and night. That is why it is said, "Is Saul also among the prophets?"

Samuel mourned

1 Samuel 15:11
"I regret that I have made Saul king, for he has turned away from following Me and has not carried out My instructions." And Samuel was distressed and cried out to the LORD all that night.

1 Samuel 16:1
Now the LORD said to Samuel, "How long are you going to mourn for Saul, since I have rejected him as king over Israel? Fill your horn with oil and go. I am sending you to Jesse of Bethlehem, for I have selected from his sons a king for Myself."

Psalm 119:136, 158
My eyes shed streams of tears because Your law is not obeyed. . . .

Jeremiah 9:1, 2
Oh, that my head were a spring of water, and my eyes a fountain of tears, I would weep day and night over the slain daughter of my people. . . .

Romans 9:2, 3
I have deep sorrow and unceasing anguish in my heart. . . .

Philippians 3:18
For as I have often told you before, and now declare even with tears: Many live as enemies of the cross of Christ.

repented

1 Samuel 15:11
"I regret that I have made Saul king, for he has turned away from following Me and has not carried out My instructions." And Samuel was distressed and cried out to the LORD all that night.

Genesis 6:6
And the LORD regretted that He had made man on the earth, and it grieved Him in His heart.