Leonardo da Vinci’s contributions to art, science, and engineering establish him as one of the great geniuses in history. Whether it be designing a flying machine or painting the Mona Lisa, his mind was alive, observant, and creative. He is credited with making this comment about maintaining mental sharpness: “Iron rusts from disuse; stagnant water loses its purity; . . . even so does inaction sap the vigor of the mind.”

It is also possible to become stagnant in our Christian life. This is what happened to the recipients of the book of Hebrews. The inspired author saw the symptoms and knew the cure. “Solid food belongs to those who are of full age, that is, those who by reason of use have their senses exercised to discern both good and evil” (Hebrews 5:14).

The word exercised is from the Greek gymnasium and relates to our idea of a disciplined workout. The Christian life is to be one of growing in knowledge so that we learn to choose the right path. And we do that by looking into the Word of God.

Take a fresh look at the Bible and ask God for new insights on how it affects your relationship with Him and with others. Work at staying spiritually fit.  — Dennis Fisher