God’s Playbook by Kevin O. Kruise, Kimberly Kruise Thompson, Cynthia Marts (Editor)

Cynthia is a feminine given name of Greek origin: Κυνθία, Kynthía, "from Mount Cynthus" on Delos island. The name has been in use in the Anglosphere since the 17th century. There are various spellings for this name, and it can be abbreviated to Cindy, Cyndi, Cyndy, Cinny, or occasionally to Thea, Tia, or Thia.

Cynthia was originally an epithet of the Greek goddess Artemis, who according to legend was born on Mount Cynthus on Delos. Selene, the Greek personification of the moon, and the Roman Diana were also sometimes called "Cynthia". In Ancient Roman literature 'Cynthia' is the name of Propertius' love.

In monotheistic belief systems, God is usually viewed as the supreme being, creator, and principal object of faith. In polytheistic belief systems, a god is "a spirit or being believed to have created, or for controlling some part of the universe or life, for which such a deity is often worshipped". Belief in the existence of at least one god is called theism.

Conceptions of God vary considerably. Many notable theologians and philosophers have developed arguments for and against the existence of God. Atheism rejects the belief in any deity. Agnosticism is the belief that the existence of God is unknown or unknowable. Some theists view knowledge concerning God as derived from faith. God is often conceived as the greatest entity in existence. God is often believed to be the cause of all things and so is seen as the creator, sustainer, and ruler of the universe. God is often thought of as incorporeal and independent of the material creation, while pantheism holds that God is the universe itself. God is sometimes seen as omnibenevolent, while deism holds that God is not involved with humanity apart from creation.

Some traditions attach spiritual significance to maintaining some form of relationship with God, often involving acts such as worship and prayer, and see God as the source of all moral obligation. God is sometimes described without reference to gender, while others use terminology that is gender-specific. God is referred to by different names depending on the language and cultural tradition, sometimes with different titles of God used in reference to God's various attributes.

Kevin () is the anglicized form of the Irish masculine given name Caoimhín (Irish pronunciation: [ˈkiːvʲiːnʲ]; Middle Irish: Caoimhghín [ˈkəiṽʲʝiːnʲ]; Old Irish: Cóemgein [ˈkoiṽʲɣʲinʲ]; Latinized as Coemgenus). It is composed of caomh "dear; noble"; Old Irish cóem and -gin ("birth"; Old Irish gein).

The variant Kevan is anglicised from Caoimheán, an Irish diminutive form. The feminine version of the name is Caoimhe (anglicised as Keeva or Kweeva).

O, or o, is the fifteenth letter and the fourth vowel letter of the Latin alphabet, used in the modern English alphabet, the alphabets of other western European languages and others worldwide. Its name in English is o (pronounced ), plural oes.

S, or for lowercase, s, is the nineteenth letter of the Latin alphabet, used in the English alphabet, the alphabets of other western European languages and other latin alphabets worldwide. Its name in English is ess (pronounced ), plural esses.