'Lasts' in the Bible

But I said, “Alas, Lord God! Behold, the [false] prophets are telling them, ‘You will not see the sword nor will you have famine, but I [the Lord] will give you lasting peace in this place.’”

yet he has no [substantial] root in himself, but is only temporary, and when pressure or persecution comes because of the word, immediately he stumbles and falls away [abandoning the One who is the source of salvation].