This is the secret of being content: To learn and accept that we live daily by God's unmerited favor given through Christ, and that we can respond to any and every situation by His divine enablement through the Holy Spirit.
Jerry BridgesEvery day God patiently bears with us, and every day we are tempted to become impatient with our friends, neighbors, and loved ones. And our faults and failures before God are so much more serious than the petty actions of others that tend to irritate us! God calls us to graciously bear with the weaknesses of others, tolerating them and forgiving them even as He has forgiven us.
Jerry Bridges... self-control is not control by oneself through one's own willpower but rather control of oneself through the power of the Holy Spirit.
Jerry Bridges