How can the sweetness of a gentle mind

How can the sweetness of a gentle mind
Pall on thy spirit? say, it is not so;
Her eyes are mournful and her sorrows flow,
For that she fears her hands have fail'd to bind
The tie of mutual wishes round thy heart;
Thy faith was given, thy promise made a part
Of the pure office which confirm'd her thine;
Oh, do not thou annul that rite divine,
Nor bid such promise swell the tinsel-mart
Of empty shows, unmeaning types and vain —
But teach thy wife to nurse her hopes again
In love returning, never to depart;
For nothing festers like a broken vow,
Which wrecks another's peace and blights another's brow.