Hebrews 11:28

‘By faith he kept the passover, and the sprinkling of the blood, that the destroyer of the firstborn should not touch them.'

By faith he obeyed God and ‘kept the Passover', calling on the people in the face of the promises of God to observe the Passover in their houses, clothed ready to leave for the land of promise, and by faith he ordered them to sprinkle the blood on their doorposts and lintels, an open testimony to their faith in what God would do. For he knew that the Destroying angel was coming to slay all the firstborn, and this was so that ‘the Destroyer of the firstborn' might not touch them (compare 1 Corinthians 10:10). He had faith to believe that they would be spared from the Destroying angel through the shed blood. See Exodus 12:1.

So should his readers also reveal their faith in God's Passover Lamb (1 Corinthians 5:7), the Messiah, and in His shed blood (Hebrews 9:14), and in its sprinkling (Hebrews 12:24), and the security that it offered in the face of all opposition.

‘He kept the Passover.' Literally ‘he did (made) the Passover', a phrase used in LXX when speaking of the observation of the Passover (Exodus 12:48; Numbers 9:2; 2 Kings 23:21). The perfect tense indicates that it was kept and continued to be kept. Some see the phrase as meaning that he ‘established' the Passover, although there is no example of this usage in LXX. It should be noted that the keeping of this Passover contained within it the fact that that day (the morning after the evening which to Israel began the day) they would leave Egypt.