'Thirty' in the Bible
Others fell on good soil, and yielded fruit: some one hundred times as much, some sixty, and some thirty.
What was sown on the good ground, this is he who hears the word, and understands it, who most certainly bears fruit, and brings forth, some one hundred times as much, some sixty, and some thirty."
and said, "What are you willing to give me, that I should deliver him to you?" They weighed out for him thirty pieces of silver.
Then Judas, who betrayed him, when he saw that Jesus was condemned, felt remorse, and brought back the thirty pieces of silver to the chief priests and elders,
Then that which was spoken through Jeremiah the prophet was fulfilled, saying, "They took the thirty pieces of silver, the price of him upon whom a price had been set, whom some of the children of Israel priced,
Others fell into the good ground, and yielded fruit, growing up and increasing. Some brought forth thirty times, some sixty times, and some one hundred times as much."
Those which were sown on the good ground are those who hear the word, and accept it, and bear fruit, some thirty times, some sixty times, and some one hundred times."
Jesus himself, when he began to teach, was about thirty years old, being the son (as was supposed) of Joseph, the son of Heli,
When therefore they had rowed about twenty-five or thirty stadia, they saw Jesus walking on the sea, and drawing near to the boat; and they were afraid.
Now I say this. A covenant confirmed beforehand by God in Christ, the law, which came four hundred thirty years after, does not annul, so as to make the promise of no effect.