all. Put by Figure of speech Synecdoche (of Genus), App-6, for the greater part.
for = on account of. Greek. dia.
end. Greek. telos (not sunteleia). See notes on Mat_24:3, and App-114): i.e. of that dispensation, which would have thus ended had the nation repented at the call of Peter (Act_3:19-26). As it did not repent, this is of course now future. Compare 1Co_1:8.
shall be saved = he shall be saved (escape or be delivered). Compare Mat_24:4-14.