And the LORD
Yhovah (yeh-ho-vaw')
(the) self-Existent or Eternal; Jehovah, Jewish national name of God -- Jehovah, the Lord.
appeared
ra'ah (raw-aw')
to see, literally or figuratively (in numerous applications, direct and implied, transitive, intransitive and causative)surely, think, view, visions.
unto him in the plains
'elown (ay-lone')
an oak or other strong tree -- plain.
of Mamre
Mamre' (mam-ray')
lusty; Mamre, an Amorite -- Mamre.
and he sat
yashab (yaw-shab')
to sit down (specifically as judge. in ambush, in quiet); by implication, to dwell, to remain; causatively, to settle, to marry
in the tent
'ohel (o'-hel)
a tent (as clearly conspicuous from a distance) -- covering, (dwelling)(place), home, tabernacle, tent.
door
pethach (peh'-thakh)
an opening (literally), i.e. door (gate) or entrance way -- door, entering (in), entrance (-ry), gate, opening, place.
in the heat
chom (khome)
heat -- heat, to be hot (warm).
of the day
yowm (yome)
a day (as the warm hours),