Thou hast done foolishly ... - Motives of worldly expediency were not to be weighed against the express commandment of God. All the circumstances and all the dangers were as well known to God as they were to Saul, and God had bidden him wait until Samuel came. Here was exactly the same sin of willful disobedience which broke out again, and was so severely reproved 1 Samuel 15:17-23.
Related Commentaries of 1 Samuel 13:13
1 Samuel 13:13
13 And Samuel said to Saul, Thou hast done foolishly: thou hast not kept the commandment of the LORD thy God, which he commanded thee: for now would the LORD have established thy kingdom upon Israel for ever.