Doubtful prayer is no prayer at all.
True faith is ever connected with hope.
It is certain that not one drop of rain falls without God's sure command.
If we are given gold, would we not test it to determine it's value? If we doubted its genuineness - we would test it by fire...and so God with us.
God would remain absolutely hidden if we were not illuminated by the brightness of Christ.
For astronomy is not only pleasant, but also very useful to be known: it cannot be denied that this art unfolds the admirable wisdom of God.