In the Bible passage Mark 12:33-37, Jesus tells his disciples to stay vigilant and alert because they won't know the timing of his return. He emphasizes the importance of being prepared and not found sleeping.
First Sunday of Advent – 2nd Reading
The passage from 1 Corinthians encourages readers to find peace and grace in God and Jesus Christ. It confirms that through belief and patience, Christ's faithful followers will be blessed with spiritual enrichment and will stand firm until the end.
Recorded Catholic Sunday Mass Readings 