2 Samuel 19:4

and because the king had covered his face and cried with a loud voice, "My son, Absalom, Absalom, my son, my son."

2 Samuel 15:30

Now David [was] going up on the Ascent of the Olives, {weeping as he went}, with his head covered and going barefoot. All the people who [were] with him each covered their head {and wept as they went}.

2 Samuel 18:33

The king was upset, and he went up to the upper room of the gate and wept. He said as he went, "My son, Absalom, my son, my son, Absalom. {If only} I had died instead of you, Absalom, my son, my son."

Treasury of Scripture Knowledge

Summary

But the king covered his face, and the king cried with a loud voice, O my son Absalom, O Absalom, my son, my son!

O my son

Bible References

O my son

2 Samuel 18:33
The king was upset, and he went up to the upper room of the gate and wept. He said as he went, "My son, Absalom, my son, my son, Absalom. {If only} I had died instead of you, Absalom, my son, my son."