WHY DON'T PRO-LIFE EVANGELICALS CELEBRATE MARCH 25, the ANUNCIATION? : "It connects directly to the incarnation, while Christmas (whatever the true date) falls around nine months after the incarnation," says pro-life writer Randy Alcorn. "It is basic Christian doctrine that Christ became flesh at the moment the Holy Spirit overshadowed Mary, at the moment of fertilization..."
http://www.christianitytoday.com/ct/2010/marchweb-only/22-41.0.html?start=2
“But we have this treasure in jars of clay to show that this all-surpassing power is from God and not from us…”