About the only thing I like about math is that you can always count on there being only one right answer. 2+2 = 4, not 5, not 3, not 10. That works well for me, a mostly black-and-white kind of person.
Have you ever thought about salvation in mathematical terms? what + what = salvation?
It's simple right? Ephesians 2:8-9 tells us
God's grace + NOTHING = Salvation
But we humans are really good at second-guessing, aren't we? Sometimes, from a human perspective, that equation just doesn't seem equal on both sides. So, in our hearts, or minds we start to rearrange things - no, we start to add in things that we think will help balance this equation a little better.
How about this one (maybe it'll make you chuckle a bit):
God's grace + homeschooling = salvation
Ever thought a certain lifestyle was essential to your Christianity. Kill that now. It's a lie.
Or how about:
God's grace + my holiness = salvation
or
God's grace + conservatism = salvation
or
God's grace + my family's history/position = salvation
Some of my favorites are:
God's grace + my denominational affiliation = salvation
and
God's grace + my orthodoxy = salvation
It's O, so easy for our hearts and minds to complicate the simplicity of God's immeasurable grace. It's nothing new, either. Paul wrote a whole letter to yell at Galatian Christians who were trying to live by this equation:
God's grace + upholding the law = salvation
He yells, "What!? Have you so quickly abandoned what you were taught for another gospel!?... O, Foolish Galatians, who has bewitched you?" (Galatians 1:6 and 3:1, paraphrased)
I am so much like those Galatians some days. How often I must chase away those lies that how I live effects my salvation. How often I must repent, not just of my actions, but of my entire attitude and heart, realizing that what I have done is only caused by the false equation I'd been believing.
The Word of God tells us, that it's only when
God's grace + NOTHING = Salvation
rings true, that there is ever any purpose for Christ's crucifixion. "If righteousness were through the law, the Christ died for no purpose." (Gal 2:21)
So, we call ourselves by His name, but live as if His death had no purpose? O, foolish Christians! Let us not forget Him who called us in the grace of Christ!