Overall, the Serenity Prayer has many good biblical principles in it, albeit some people may improperly apply the phrase, "Taking, as Jesus did, this sinful world as it is.” This phrase could mean either that Jesus came to earth and left things as they were, which is clearly false; Jesus’s presence on Earth was the pivotal event in human history (Luke 4:16–21). Another interpretation of that line is that we should actively participate in our sanctification process through such actions as obeying Jesus’ command to love others (John 13:34). Because of the solid biblical themes throughout the prayer, a better interpretation is this: While Jesus loved people just as they were, and we should too, Jesus took that love a step deeper—particularly by giving Himself up as an atonement for our sin, so we could believe in Him and receive eternal life (John 3:16–18; 14:6). Aside from the ambiguity of this one phrase, the well-known prayer supports biblical principles like God’s all-knowing nature (Proverbs 16:9; 20:24), our joy being found through a relationship with Jesus and obedience to His commands (John 15:11; Philippians 4:4), and pursuing God’s glory over our own desires (1 Corinthians 10:31).
What we know as the Serenity Prayer is almost universally attributed to a man named Reinhold Niebuhr (1892–1971). It is believed that the prayer itself came from Niebuhr's diary and was placed into newspaper articles in the 1930s and later, sometime around 1940, into a worship book by one of Niebuhr's students, Winnifred Crane Wygal. Several variations of the prayer exist today. The most common version says, "God, grant me the serenity to accept the things I cannot change, the courage to change the things I can, and the wisdom to know the difference."
A more complete and still-well-known version of the prayer was published in 1951. It reads as follows: "God, give me grace to accept with serenity the things that cannot be changed, courage to change the things which should be changed, and the wisdom to distinguish the one from the other. Living one day at a time, enjoying one moment at a time, accepting hardship as a pathway to peace, taking, as Jesus did, this sinful world as it is, not as I would have it, trusting that You will make all things right, if I surrender to Your will, so that I may be reasonably happy in this life, and supremely happy with You forever in the next. Amen."
The most common use of the Serenity Prayer is in recovery groups such as Alcoholics Anonymous and Celebrate Recovery. It has helped many people. However, there are a multitude of passages in Scripture which we can turn to as guides for our own prayers of serenity, such as Psalm 1, Psalm 27:14, Proverbs 3:5–6, 1 Corinthians 16:13, Philippians 4:4–8, Colossians 3:16, 2 Timothy 1:7, James 1:5, James 3:17, and 1 Peter 5:6–11, just to name a few.