'Complaint' in the Bible

When I say, My bed shall comfort me, my couch shall ease my complaint;

If I say, I will forget my complaint, I will leave off my sad countenance, and brighten up,

My soul is weary of my life: I will give free course to my complaint; I will speak in the bitterness of my soul.

As for me, is my complaint to a man? or wherefore should not my spirit be impatient?

Even to-day is my complaint bitter: my stroke is heavier than my groaning.

{A Prayer of the afflicted, when he is overwhelmed, and poureth out his complaint before Jehovah.} Jehovah, hear my prayer, and let my cry come unto thee.

forbearing one another, and forgiving one another, if any should have a complaint against any; even as the Christ has forgiven you, so also do ye.