Concupiscence
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Concupiscence is an ardent longing, typically one that is sensual. In Christianity, particularly in Catholic and Lutheran theology, concupiscence is the tendency of humans to sin.
St. Augustine explored and used the term "concupiscence" to refer to sinful lust.
Verheerlijking van de Heilige Thomas van Aquino, RP P 1908 2123
Original sin
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In Christian theology, original sin is the condition of sinfulness that all humans share, which they inherit from the Fall of Adam and Eve, involving the loss of original righteousness and the distort
Depiction of the sin of Adam and Eve (The Garden of Eden with the Fall of Man by Jan Brueghel the Elder and Pieter Paul Rubens)
Paul the Apostle (c. 5 – c. 64/65 AD), early Christian evangelist whose writings are taken as foundational for the doctrine of original sin.
Augustine of Hippo (354-430) wrote that original sin is transmitted by concupiscence and enfeebles freedom of the will without destroying it.
Illuminated parchment, Spain, c. 950–955 AD, depicting the Fall of Man, cause of original sin