I believe a solid foundation can be built by looking at the words of Jesus Christ our Lord and build from that. Everything else must line up with what Jesus taught.
I can agree with that.
If memory serves (and I'm gettin old, so bear with me

), up to the time Jesus spoke His Olivet Discourse (and INCLUDING it), He only ever spoke of the promised and prophesied EARTHLY Millennial Kingdom (which will commence upon His "RETURN"
to the earth). His disciples' Q of Him in Matt24:3 was BASED ON what He had ALREADY spoken to them about in Matthew 13:24,30,39,40,49-50 (when the angels will "REAP")...
I made a post some time back, showing 12 general passages that speak of His Second Coming
to the earth (FOR the promised and prophesied EARTHLY Millennial Kingdom [i.e. not speaking of "our Rapture/Departure," per context]):
[quoting that post]
--ALL "
Son of man cometh/coming/shall come/etc" passages
--"the kingdom
of the heavens" (the promised and prophesied
EARTHLY Millennial Kingdom)
--"the wedding
FEAST/SUPPER" passages (ditto the above; referred to in a few different passages)
--the
"G347 - shall sit down [around a table / at a meal]" of Matt8:11 and its parallel
--
the entire Olivet Discourse (
except for the section of Lk21:12-24a about the events of 70ad), so Matt24-25/Mk13/Lk21
--the "
IN QUICKNESS [NOUN]" references of Lk18:8[chpt-17-end] "avenge IN QUICKNESS [NOUN]," [also Romans 16:20 (distinct LOCATION, same time-frame) and Rev1:1/22:6] (specific limited future time period
leading UP TO the
earthly MK, which will commence at His Second Coming
to the earth)
--"the end [singular] of the age [singular]" in Matthew 13:24,30,39,40,49-50 (also Matt24:3 and His response); as well as
"the age [singular] to come" which follows this,
sequentially, but found in
Matt12:32 (the MK) located in the text just before the Matt13 passage
--the two
"RETURN" passages of Luke 12:36-37,38,40,42-44 "when he will
RETURN FROM the wedding..."
THEN the meal;
and Luke 19:12,15,17,19
"RETURN," when He will deal out responsibilities regarding "have thou authority over 10 cities" and "likewise... be thou over 5 cities" (and the parallels to these; see also Rev2:26-27, Rev19:15
b ["
SHALL [future] shepherd them [the nations]..." (FUTURE to that point in time!)], Rev20:4, etc)
--ALL "there shall be weeping and gnashing of teeth" passages (for those
not entering the
earthly MK time period, as ALL "saints/the righteous" WILL be present and accounted FOR, to enjoy)
--the "ye [the 12] shall sit on 12 thrones, judg
ING the 12 tribes of Israel" (Lk22:30,16,18 and Matt19:28 [compare with Matt25:31-34 for TIMING: His 2nd Coming
to the earth])
--about eight to TEN
"BLESSED" passages in the gospels [correlating with Dan12:12's "BLESSED" (specific time slot ["Blessed is he that waiteth and cometh to the 1335 days"]--referring to "still-living" persons, at the time of His Second Coming
to the earth) and Rev19:9's "BLESSED" both/all pertaining to their entrance into the promised and prophesied
earthly Millennial Kingdom, commencing upon His RETURN
to the earth at the time of His Second Coming
to the earth]
--the Transfiguration (a picture of His Second Coming glory)
[end quoting that post]