My daughter and I have the same size foot, and occasionally she borrows my shoes and I hers.

On one such occasion, I noticed that I was having trouble walking in the shoes I borrowed. I took them off, and to my surprise, the entire heal was gone. I realized that if I continued to use them, I could trip.

The Lord gives us shoes to walk in, “and having shod your feet with the preparation of the gospel of peace; … Ephesians 6:15 NKJV

And directions for using the shoes, “Therefore you shall keep the commandments of the Lord your God, to walk in His ways and to fear Him.” Deuteronomy 8:6 NKJV