The term is used of those woods and resins which give off a pleasant smell when burnt. Frankincense, or olibanum, is made from the resin of trees in southern Arabia. It was much used not only in pre-Christian pagan religions in sacrificial rites, but also in the tent of meeting (Exod. 40: 27) and in the Temple, where it symbolized the offering of prayer (Ps. 141: 2, Luke 1: 10). The Christian Church was reluctant to burn incense in the first three centuries on account of its use in the cult of the Roman emperor; a token offering of it was demanded of Christians as evidence of their patriotism—which for the Church could only be apostasy. Later generations were less inhibited and noticed that incense had been offered to the infant Jesus (Matt. 2: 11). In some Christian Churches persons and objects regarded as representing Christ were and still are censed in the Eucharist.