Both Eli and Samuel sleep within the precincts of the tabernacle. Not, however, in the sanctuary itself, but in one of those buildings that opened into its courts, which were erected for the accommodation of the priests and Levites. Eli's sight was failing him, and perhaps the care of the lamp as well as the door was entrusted to Samuel. The lamp was to burn always (Exod. xxvii. 20), that is, it was to be trimmed and lighted every morning and evening (Exod. xxx. 7, 8); and to attend to this was primarily the high priest's duty. The lamp had doubtless been duly trimmed, and it would probably continue burning through a good part of the night. It was not yet out when a voice fell on the ears of Samuel, loud enough to rouse him from the profound slumber into which he had probably fallen. Thinking it was Eli's, he ran to his side; but Eli had not called him. Again the voice sounded, again Samuel springs to his feet and hastens to the high priest; again he is sent back with the same assurance. A third time the voice calls; a third time the willing and dutiful Samuel flies to Eli's side, but this time he is sent back with a different answer. Hitherto Samuel had not known the Lord--that is, he had not been cognisant of His way of communicating with men in a supernatural form--and it had never occurred to him that such a thing could happen in his case. But Eli knew that such communications were made at times by God, and, remembering the visit of the man of God to himself, he may have surmised that this was another such occasion. The voice evidently was no natural voice; so Samuel is told to lie down once more, to take the attitude of simple receptiveness, and humbly invite God to utter His message.