A purine is a heterocyclic aromatic organic compound. It consists of a pyrimidine ring fused to an imidazole ring. Purines, which include substituted purines and their tautomers, are the most widely occurring nitrogen-containing heterocycle in nature.his is called complementary base pairing. In RNA, the complement of adenine is uracil instead of thymine. Other notable purines are hypoxanthine (4), xanthine (5), theobromine (6), caffeine (7), uric acid (8) and isoguanine (9).
However, because of Christ and His death on the cross, the meaning of the cross today is completely different. In Christianity, the cross is the intersection of Godâs love and His justice. Jesus Christ is the Lamb of God who takes away the sin of the world (John 1:29). The reference to Jesus as the Lamb of God points back to the institution of the Jewish Passover in Exodus 12.
The cross as a Christian symbol or seal came into use at least as early as the second century (see Apost. Const. iii. 17; Epistle of Barnabas, xi.-xii.; Justin, Apologia, i.n contemporary Christianity, the cross is a symbol of the atonement and reminds Christians of God's love in sacrificing his own son for humanity. It represents Jesus' victory over sin and death, since it is believed that through his death and resurrection he conquered death itself.