I'm sorry in advance if you don't agree with me, but this was the first meaning that came into my head, and when I thought about it, I realized that it fit well.
"And this cup of yours tastes holy/But a brush with the Devil/can clear your mind/And strengthen your spine"
A man (presumably Marcus Mumford) met another person that followed the Christian faith. He explained to this other person that an encounter with sin (or multiple encounters) has made him stronger
"But fingers tap into what you were once"
The other person sees that the man is possibly actually being led by God.
"And I'm worried that I blew my only chance"
The man is worried that it's too late to go back to the Christian faith. (Later in the song the lyrics state that the man had once been a Christian)
"lead me home"
The man asked God to lead him.
"Spare my sins for the ark/I was to slow to depart/I'm a cad but I'm not a fraud/I'd set out to serve the Lord"
The man changes his mind. Again he thinks it is too late. However, he did give Christianity a fair try. He was not just some kind of fake Christian, not truly believing.
"But my heart was colder when you'd gone/And I lost my head but found the one that I love"
The man was different when he was a Christian. He has changed now. However, this change came after great confusion, and he is still confused (he keeps going back and forth in answering the question: "Am I going to be a Christian?" "Yes, no, yes, no..."), but he is again considering Christianity.
"Let's live while we are young"
The man finally decides that he does not want any of this confusion anymore, and so he will live and be happy now, and come back to this difficult question later.
Marcus himself has said that he is not a Christian, but he also indirectly stated that he used to be, when he explained in an interview that the line that most people believe to be "I set out to serve the Lord" is in fact "I HAD set out to serve the Lord".
I'm sorry in advance if you don't agree with me, but this was the first meaning that came into my head, and when I thought about it, I realized that it fit well.
"And this cup of yours tastes holy/But a brush with the Devil/can clear your mind/And strengthen your spine"
A man (presumably Marcus Mumford) met another person that followed the Christian faith. He explained to this other person that an encounter with sin (or multiple encounters) has made him stronger
"But fingers tap into what you were once"
The other person sees that the man is possibly actually being led by God.
"And I'm worried that I blew my only chance"
The man is worried that it's too late to go back to the Christian faith. (Later in the song the lyrics state that the man had once been a Christian)
"lead me home"
The man asked God to lead him.
"Spare my sins for the ark/I was to slow to depart/I'm a cad but I'm not a fraud/I'd set out to serve the Lord"
The man changes his mind. Again he thinks it is too late. However, he did give Christianity a fair try. He was not just some kind of fake Christian, not truly believing.
"But my heart was colder when you'd gone/And I lost my head but found the one that I love"
The man was different when he was a Christian. He has changed now. However, this change came after great confusion, and he is still confused (he keeps going back and forth in answering the question: "Am I going to be a Christian?" "Yes, no, yes, no..."), but he is again considering Christianity.
"Let's live while we are young"
The man finally decides that he does not want any of this confusion anymore, and so he will live and be happy now, and come back to this difficult question later.
Marcus himself has said that he is not a Christian, but he also indirectly stated that he used to be, when he explained in an interview that the line that most people believe to be "I set out to serve the Lord" is in fact "I HAD set out to serve the Lord".