Be in communion with the Lord and He will show you His will in your life. Christ will help purify your heart and mind when you turn to Him and ask for forgiveness and guidance.
"And while He was praying, the appearance of His face became different, and His clothing became white and gleaming." - Luke 9:29
Small: 6.5 inches.
Medium: 7 inches.
Large: 7.7 inches.
Make sure to measure your wrist with a ruler if you are unsure! Most men will fit a medium-large, and most women will fit a small-medium.