Romans 7:22 says, "For I delight in the law of God according to the inner man." Our inner man delights in the law of God. Ephesians 3:16 also tells us "to be strengthened with power through His Spirit into the inner man."
In 2 Corinthians 4:16 Paul also said, "Though our outer man is decaying, yet our inner man is being renewed day by day." The Bible divides our being into the outer man and the inner man. God resides in the inner man, and the man outside this God-occupied inner man is the outer man. In other words, our spirit is the inner man, while the person that others contact is the outer man.