The God of the Bible is a God of truth. On the other hand, the Devil is the great enemy of truth. The Bible says of him, “there is no truth in him.”
Man is not promised an endless supply of strength for him to store up. Rather, God promises to provide the necessary grace and strength for the present trials.
Sin and those who participate therein anger Lord. In the days of Noah, sin grieved the Lord so badly that it repented God that he had made man on the earth.
Everything in the Christian life is dependent upon prayer. Thankfully, we serve a God who hears, answers, and has respect unto prayer.
How would making your motive match the Lord's motive change how you approach the Christian life (from witnessing to praying to Bible reading and so on)?