'Discovered' in the Bible

So I dedicated myself to learn about wisdom and knowledge, and about insanity and foolishness. And I discovered that this is also like chasing after the wind.

Look! I have discovered what is good and fitting: to eat and to drink and {to enjoy} all [the fruit of] the toil with which one toils under the sun during the number of the days of his life that God gives to him--for this [is] his lot.

I discovered for myself a bitterness that surpasses that of death: the woman whose heart is full of snares and nets, whose hands are chains of bondage. Whoever pleases God will escape from her, but the transgressor will be trapped by her.

“Look,” says the Teacher, “I have discovered this by adding one thing to another to find out the explanation,

Only see this: I have discovered that God made people upright, but they pursued many schemes.”