Thrice (epitris). For three times. Peter remained unconvinced even by the prohibition of God. Here is a striking illustration of obstinacy on the part of one who acknowledges the voice of God to him when the command of the Lord crosses one’s preferences and prejudices. There are abundant examples today of precisely this thing. In a real sense Peter was maintaining a pose of piety beyond the will of the Lord. Peter was defiling what God had cleansed.
Was received up (anelēmphthē). First aorist passive indicative of analambanō, to take up. The word used of the Ascension (Act 1:22).