John Chrysostom, a 5th century church father, compared the guardian angels to the troops garrisoned in cities on the frontiers of the empire to defend it from the enemy. Basil the Great said, "Beside each believer stands an angel as protector and shepherd leading him to life." Angels ministered to Jesus after his temptation in the wilderness and during his agony in the Garden of Gethsemane. The angels will be present at Christ's return, which they will announce, to serve at his judgment (Matt. 25:31). The angels tell us that this universe is not just materialistic. The fallen angels, led by Satan, seek our destruction. If they cannot induce us to disown our faith and allegiance to Christ, they attempt to divert us from doing the will of God by distracting us with good things that weigh us down and make us indifferent towards the things of God. God gives us the help of his angelic hosts and he gives us spiritual weapons, the shield of faith and the breastplate of righteousness (see Ephesians 6:1-11), to resist the devil and his lies. Through the gift of the Holy Spirit, we, too, join with angelic choirs in singing the praises of God.