A — 1: ἐπίκειμαι
(Strong's #1945 — Verb — epikeimai — ep-ik'-i-mahee )

"to lie" or "press upon," is rendered "they were instant" in Luke 23:23 (Amer. RV, "they were urgent"). See IMPOSE.

A — 2: ἐφίστημι
(Strong's #2186 — Verb — ephistemi — ef-is'-tay-mee )

"to set upon or by," is used in the NT intransitively, either in the Middle Voice, or in certain tenses of the Active, signifying "to stand by, be present, be at hand, come on or upon," and is translated "be instant" in 2—Timothy 4:2 . See ASSAULT , COME , etc.

Romans 12:12CONTINUE
B — 1: σπουδαίως
(Strong's #4709 — Adverb — spoudaios — spoo-dah'-yoce )

"earnestly, diligently," is rendered "instantly" in Luke 7:4 , AV (RV, "earnestly"). See EARNEST.

Acts 26:7EARNEST