Beware when you want to confer with flesh and blood, i.e., your own sympathies, your own insight, anything that is not based on your personal relationship with God. These are the things that compete with and hinder obedience to God.
Abraham did not choose the sacrifice. Always guard against self-chosen service for God; self-sacrifice may be a disease. If God has made your cup sweet, drink it with grace; if He has made it bitter, drink it in communion with Him. If the providential order of God for you is a hard time of difficulty, go through with it, but never choose the scene of your martyrdom. God chose the crucible for Abraham, and Abraham made no demur; he went steadily through. If you are not living in touch with Him, it is easy to pass a crude verdict on God. You must go through the crucible before you have any right to pronounce a verdict, because in the crucible you learn to know God better. God is working for His highest ends until His purpose and man's purpose become one.
Oswald Chambers, My Utmost for His Highest, November 11