Ultimately, we must recognize that Jesus Himself was not a complainer. He was a worshipper. And the prayer that He prayed in the Garden of Gethsemane must ever be our prayer as well: "Father, not my will, but Thine, be done" (Luke 22:42).
Passages that show how Jesus addressed complaints
Complaints about fortunate people
* The heir's complaint about his brother (Luke 12:13-21)
* Peter's complaint about John (John 21:20-25)
* The ten disciples' complaint about the two disciples (Matthew 20:20-28)
* The hired worker's complaint about the landowner (Matthew 20:1-16)
Complaints about insensitive people
* Martha's complaint about Mary (Luke 10:38-42)
* The invalid's complaint about those who ignored him (John 5:1-8, 14)
Complaints about unspiritual people
* John's disciples' complaint about the disciples of Jesus (Matthew 9:14-17)