Matthew 26:37-38

He took Peter and the two sons of Zebedee [i.e., James and John] with Him, and [soon] began to be grieved and very distressed.

Luke 22:44

And He became anguished as He prayed more fervently; even His sweat was like drops of blood falling to the ground.

2 Corinthians 2:4

For I wrote to you out of much distress and anguish of heart and with many tears, not in order to grieve you, but that you people might know how very much I love you.

Treasury of Scripture Knowledge

Summary

Therefore I will not refrain my mouth; I will speak in the anguish of my spirit; I will complain in the bitterness of my soul.

Bible References

The anguish

Matthew 26:37
He took Peter and the two sons of Zebedee [i.e., James and John] with Him, and [soon] began to be grieved and very distressed.
Luke 22:44
And He became anguished as He prayed more fervently; even His sweat was like drops of blood falling to the ground.
2 Corinthians 2:4
For I wrote to you out of much distress and anguish of heart and with many tears, not in order to grieve you, but that you people might know how very much I love you.