ALMIGHTY God, who didst give such grace unto thy holy Apostle Saint Andrew, that he readily obeyed the calling of thy Son Jesus Christ, and followed him without delay; Grant unto us all, that we, being called by thy holy Word, may forthwith give up ourselves obediently to fulfil the holy commandments; through the same Jesus Christ our Lord. Amen.
Sometimes only the old fashioned wording will do for a collect. I am glad we have a patron saint. Makes me feel watched over somehow. Today is his day.