A.T. Robertson Commentary Hebrews 11:17

"By faith Abraham, being tried, offered up Isaac: yea, he that had gladly received the promises was offering up his only begotten [son];" — Hebrews 11:17 (ASV)

Being tried (πειραζομενος). Present passive participle of πειραζω. The test was still going on.

Offered up (προσενηνοχεν). Perfect active indicative of προσφερω, the verb so often used in this Epistle. The act was already consummated so far as Abraham was concerned when it was interrupted and it stands on record about him. See Ge 22:1-18.

He that had gladly received the promises (ο τας επαγγελιας αναδεξαμενος). Αναδεχομα is old verb to welcome, to entertain, in N.T. only here and Ac 28:7. It seemed the death of his hopes.

Was offering up (προσεφερεν). It is the imperfect of an interrupted action like εκαλουν in Lu 1:59.