The Scriptural implication that God is All-in-all is, in the teaching of Christian Science, carried to its ultimate and complete conclusion. Allness means all-inclusive everywhereness. Accepting literally the further Biblical statement that there is none beside God, Christian Science reveals that God's allness leaves no space or location where anything unlike God or opposite to His presence can appear as fact or actuality.
Pondering the Scriptures, Mary Baker Eddy, who discovered and founded Christian Science, saw God to be Mind, divine, infinite Mind, and realized that as limitless, infinite Mind, God's consciousness of His own infinity must be everywhere present throughout His universe. Furthermore, the nature of God being good and good only, logic must conclude that in the entire scope of existence evil, or the lack of good, cannot appear as real or true experience.
This conclusion is a radical departure from the theological statements which maintain that evil has been created by God or is permitted by Him for reasons and purposes not understood by mortals. Through Christian Science, thought is lifted from a dual sense of existence, wherein God and man are supposed to know evil, from belief in a world where good and evil commingle or contend, to the comprehension of God as the divine Mind, which is everywhere present, and which knows no evil.