'Labor' in the Bible

Now the one planting and the one watering are one in purpose, and each will receive his own reward according to his own labor.

we labor, working with our own hands. When we are reviled, we bless; when we are persecuted, we endure it;

Therefore, my dear brothers, be steadfast, immovable, always excelling in the Lord’s work, knowing that your labor in the Lord is not in vain.