Ah, but there is a great difference.
Many church members today stay in their churches, support their pastors, out of loyalty. Not faithfulness.
The Bible never speaks of loyalty, but faithfulness. A lot of English translation of loyalty from the Bible come from the Hebrew word Hesed: kindness. Thus, it is really not the sense of loyalty. Loyalty is a concept foreign to Biblical morality.
Before defining what is loyalty and what is faithfulness, let us note that they are not the same. What then is the difference? I find this article rather enlightening:
Loyalty is about the past. It is grounded in the past. It is based on the past. "In the past, I have been here, I grew up here, we knew each other for a long time", hence the supposedly moral demand for loyalty.
Faithfulness is about the future. It is grounded in promise. It is based on hope. Ultimately, one that is faithful to God, is one that depends solely on God.
One who is loyal is no more better than a dog. For it is based on experience. However, one who is faithful does not merely support, but innovatively glorify that which one is faithful to. One who is faithful does not care about the history of relationship, for covenants look ahead and never backward.
The proponent of "loyalty" might say, ah, thus those who are faithful are fools! For they do not seek assurance in their faith! Without past or experience, they blindly step into contractual proceedings. Oh but on the contrary, it is those who are "loyal" who are blind, for they assumed too much: too much of their future and too much of our faith. Unlike the loyal ones, the faithful grounds their faith ultimately in God, and not in past criteria. God, who is perfection, is always faithful to His children.