Eastern Christians in the context of "Grace (Christianity)"

A Christian (/ˈkrɪstʃən, -tiən/ ) is a person who follows or adheres to Christianity, a monotheistic Abrahamic religion based on the life and teachings of Jesus Christ. Christians form the largest religious community in the world. The words Christ and Christian derive from the Koine Greek title Christós (Χριστός), a translation of the Biblical Hebrew term mashiach (מָשִׁיחַ) (usually rendered as messiah in English). While there are diverse interpretations of Christianity which sometimes conflict, they are united in believing that Jesus has a unique significance. The term Christian used as an adjective is descriptive of anything associated with Christianity or Christian churches, or in a proverbial sense "all that is noble, and good, and Christ-like."

According to a 2011 Pew Research Center survey, there were 2.3 billion Christians around the world, up from about 600 million in 1910. Today, about 37% of all Christians live in the Americas, about 26% live in Europe, 24% live in sub-Saharan Africa, about 13% live in Asia and the Pacific, and 1% live in the Middle East and North Africa. Christians make up the majority of the population in 158 countries and territories. 280 million Christians live as a minority. About half of all Christians worldwide are Catholic, while more than a third are Protestant (37%). Eastern Christians, including the Eastern Orthodox, Oriental Orthodox, and Church of the East, comprise 12% of the world's Christians. Other Christian groups make up the remainder. By 2050, the Christian population is expected to exceed 3 billion due to overall total fertility rate according to Pew Research Center. According to a 2012 Pew Research Center survey, Christianity will remain the world's largest religion in 2050, if current trends continue. In recent history, Christians have experienced persecution of varying severity, especially in the Middle-East, North Africa, East Asia, and South Asia.

In Western Christian beliefs, grace is God's favor, and a "share in the divine life of God". It is a spontaneous gift from God – "generous, free and totally unexpected and undeserved" – that cannot be earned. In the Eastern Orthodox Church, grace is the uncreated energies of God. Among Eastern Christians generally, grace is considered to be the partaking of the divine nature described in 2 Peter 1:4 and grace is the working of God himself, not a created substance of any kind that can be treated like a commodity.

As an attribute of God, grace manifests most in the salvation of sinners, and Western Christianity holds that the initiative in the relationship of grace between God and an individual is always on the side of God.

Marriage vows are promises each partner in a couple makes to the other during a wedding ceremony based upon Western Christian norms. They are not universal to marriage and not necessary in most legal jurisdictions. They are not even universal within Christian marriage, as Eastern Christians do not have marriage vows in their traditional wedding ceremonies.