Among the Christian groups, only members of the Roman Catholic Church are doing the sign of the cross. Yet many of these members do not know the meaning and reason why they are doing it and how to do it properly. This simple note can help us understand the topic in four points. 1. The foreheads in the writings of the Old Testament and the Church Fathers. 2. Why do we make the sign of the cross? 3. When do we make the sign? 4. How do we make the sign of the cross?
1. The forehead in the writings of the Old Testament and the Church Fathers are of utmost importance. The Church Fathers inherits its significance from the Old Testament that became the tradition of the whole Catholic Church where the sign of the cross should begin with. There are two OT writings that tell about the foreheads – Book of Deuteronomy and the Book of the Prophet Ezekiel – and two writings from the Church Fathers – St. Cyril of Jerusalem, A.D. 315 – 386.
a. In Deuteronomy 6: 4-8, the first part of the passage contains the Shema that informs every Jew about their religious duty of love God alone. Every Israelite should place the shema inside the small box and place them in their foreheads as a sign of being a faithful follower of Yahweh. They call it phylacteries. In Ezekiel 9:4, Yahweh tells prophet Ezekiel about the destruction to come in Jerusalem because of the abomination people were doing, and do the mark on the foreheads of men who were righteous.
b. St Cyril of Jerusalem speaks of the forehead from which the sign of the cross be made by our fingers. For him every Christian should reveal the sign of the cross proudly. One should not be ashamed of it nor hid it from the public. For the great price won by Christ is no other but through the cross.
2. The words of St. Cyril have become the basis and standard for the Catholic Church in doing the sign of the cross, beginning with their forehead. The church has also adopted new meanings to it. First, instead of placing the words of the scripture in the foreheads like the Jews themselves were doing, the act of signing one’ self with the cross has been made as the procedure of expressing one’s faith and love for Jesus. Secondly, the cross itself has become the new seal of being Christians, because through the cross Christ has won the victory over sin for us – eternal life. Thirdly, whenever we do the sign of the cross, we profess that our God is indeed three persons – the Father, the Son, and the Holy Spirit. And lastly, St. Cyril says that by doing the sign of the cross, we are shield from Satan and his temptation because they are afraid of Him, and for St. Ephrem, it is a protecting wall round all your conduct.
3. St. Ephrem of Syria (died A.D. 373), along with St. Cyril of Jerusalem, has taught the Christians in their own respective communities when they would do the sign of the cross. Let me quote their exact words.
St. Ephrem said: “…over the bread we eat, and the cups we drink; in our comings in, and goings out; before our sleep, when we lie down and when we awake; when we are in the way and when we are still.”