'Genuine' in the Bible

But if we say, ‘From men’”—they were afraid of the crowd, because everyone thought that John was a genuine prophet.

And [while] he was at Bethany in the house of Simon the leper, [as] he was reclining for a meal, a woman came holding an alabaster flask of very costly perfumed oil of genuine nard. [After] breaking the alabaster flask, she poured [it] out on his head.