This commandment is also taken literally within Judaism. On their doorposts—for example, when moving into a new home—they attach a small container containing the words from Exodus 13:1–10, Exodus 13:11–16, Deuteronomy 6:4–9, and Deuteronomy 11:13–21. This is also done on their city gates. I once discovered this on the Jaffa Gate in Jerusalem. This is how they demonstrate that God's commandment should have authority both in the home and in public life. Everyone may be able to recognize this.
This attitude is certainly appropriate for Christians. After all, Jesus said to his disciples: You are the light of the world. A city set on a hill cannot be hidden...In the same way let your light shine before others, so that they may see your good works and give glory to your Father who is in heaven
(Matthew 5:14, Matthew 5:16).
9 You shall write them on the doorposts of your house and on your gates.