'Fervently' in the Bible

And being in anguish, he began praying more fervently and his sweat became like drops of blood falling down to the ground.]]

Thus Peter was kept in the prison, but prayer was fervently being made to God by the church for him.

Elijah was a human being with the same nature as us, and {he prayed fervently} for [it] not to rain, and it did not rain on the land [for] three years and six months.

Having purified your souls by your obedience to the truth for sincere brotherly love, love one another fervently from the heart,