Today is the feast day of St. John of the Ladder. (You can read more about him and his book here.)
Troparion of St John Tone 3
Thou hast set up a holy ladder by thy words/ and hast shone forth as a teacher of monks;/ thou dost lead us, O John, from the purification that comes from discipline/ to the light of the Divine Vision./ O righteous Father, pray to Christ our God to grant us His great mercy.
Kontakion of St John Tone 1
From thy book thou dost offer teachings as everlasting fruits, O wise one,/ and dost sweeten the hearts of those who watchfully attend to them, O blessed one./ For it is a ladder that from earth to heavenly glory/ leads souls who honour thee with faith.
Another Kontakion of St John Tone 8
We have found thy God-given virtues to be a divine ladder to heaven./ For thou, O holy Father John, wast a model of the virtues.