1 Kings 18:37

Hear me, O Lord, hear me— Elijah, according to Abarbanel, was more urgent and fervent in his prayer, because he had undertaken to make the experiment of God's power of his own accord, and without any particular command from him; nothing doubting but that he would appear, to vindicate his own honour, even though the prophet offered sacrifices on a high place, which was not agreeable to the law.