Accounting (logisameno). First aorist middle participle of logizomai. Abraham had God's clear command that contravened God's previous promise. This was his solution of his difficult situation. God is able (dunatai o qeo). God had given him Isaac in his old age. God can raise him from the dead. It was Abraham's duty to obey God. In a parable (en parabolh). See already Luke 9:9 for parabolh. Because of (oqen, whence) Abraham's superb faith Isaac was spared and so he received him back (ekomisato) as almost from the dead. This is the test that Abraham stood of which James speaks ( James 2:23 ).