Answer me this: how do you read that statement?
Do you see it saying, "any level of effort is good enough, as long as you are trying," or does it say, "doing nothing is not acceptable?"
To me, these two are mutual exclusive when it comes to living as a Christian. While God understands we are fallible and we will sin, screw up, let him down, and generally not live our lives as we should, the simple fact of the matter is that everything we do should be done to glorify God. Simply being a good person — i.e., "any level of effort, as long as you try" — will not find you favor with God. First Corinthians 13:3 says, "If I give all I possess to the poor and surrender my body to the flames, but have not love, I gain nothing." In other words, if we do not love God, and do not love our brethren as He loves us, all the good deeds we can do mean absolutely nothing. Our deeds need to reflect God, but also need to be done directly, actively and clearly glorify Him.
It's not complicated. All you need to ask is whether you are doing your deeds for God's gain, or for your own. For, when you die, your deeds for yourself may be remembered on Earth, but are forgotten in the eyes of Heaven. And if you've spent your life doing seemingly good deeds — giving to charities, working to eradicate disease or developing new technologies to improve the quality of life — and your intentions were never to extend God's reach into the community, your deeds are no better than the evilest of evil — and, therefore, are unacceptable.
The line is a fine one: it's not what you do, it's what is in your heart. If you have a prideful heart that strives to bring glory to yourself, you will not find the tiniest shred of peace in the eternity you've dealt yourself. But if you have a humble heart, that of a servant in a life where God is the master, your eternity will be one of peace and unimaginable joy.
It's not what you have done for man, but what you have done for God, that counts. Because, by doing good deeds for man, you show that man can be compassionate. By doing good things for God, and letting your deeds for God shine with the glory of the Father, you show that God is Love.
