And the angel said unto him, gird thyself
He slept in his inner garment loose about him; wherefore the angel bids him gird it up with his girdle, and prepare to walk out after him:
and bind on thy sandals;
which were a sort of shoes that covered only the soles of the feet, and were fastened to the leg, with strings:
and so he did;
he did not ask any question, or the reason of these orders; he did not dispute the matter, but at once obeyed:
and he saith unto him, cast thy garment about thee;
meaning his upper garment, or cloak, which lay by him:
and follow me;
suggesting hereby, that he should take care of him, and show him his way, and bring him safe out of the prison.