"Let us not become weary in doing good..." Doing good can become wearisome. The daily, "small" decisions we make, those little battles we may be facing right now, are a lot more important than we think, as they may be the steps to develop emotional resilience needed to continue to do good for God. No, it's not natural to our sinful natures, but as we "pretend" to be like Jesus, we find God shaping us more into the character of Christ.