One tune that is used for it is ST THOMAS by John Francis Wade - which is also the usual setting of Tantum Ergo.
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Lord accept the gifts we offer at this Eucharistic feast,
Bread and wine to be transformed now, through the action of thy priest,
Take us too Lord and transform us, may thy grace in us increase.
May our souls be pure and spotless, as the host of wheat so fine,
May all stain of sin be crushed out like the grape that forms the wine,
As we too become partakers in this sacrifice divine
Take our gifts Almighty Father, living God eternal true,
Which we give through Christ our Saviour pleading here for us anew
Grant salvation to us present and our faith and love renew.