From ek and zeteo; to search out, i.e. (figuratively)investigate, crave, demand, (by Hebraism) worship -- en- (re-)quire, seek after (carefully, diligently).
KJV: From the blood of Abel unto the blood of Zacharias, which perished between the altar and the temple: verily I say unto you, It shall be required of this generation.
NASB: from the blood of Abel to the blood of Zechariah, who was killed between the altar and the house of God; yes, I tell you, it shall be charged against this generation.'
KJV: Neither give heed to fables and endless genealogies, which minister questions, rather than godly edifying which is in faith: so do.
NASB: nor to pay attention to myths and endless genealogies, which give rise to mere speculation rather than furthering the administration of God which is by faith.