'Work' in the Bible

Having ever in mind your work of faith and acts of love and the strength of your hope in our Lord Jesus Christ, before our God and Father;

For this reason, when I was no longer able to keep quiet, I sent to get news of your faith, fearing that you might be tested by the Evil One and that our work might come to nothing.

And have a high opinion of them in love because of their work. Be at peace among yourselves.