This example is where we best see the truth in the relationship argument for personal devotions. In his excellent book Delighting in the Trinity, Michael Reeves writes, “The Christian life is one of being brought to share the delight the Father, Son, and Spirit have for each other.”
Jesus has a perfect love for the Father and the Spirit and perfect union with them. If anyone could have practiced a relationship with the Father while simply acknowledging him throughout the day, it would be Jesus. But how did he, the God-man, outwardly demonstrate his love for the persons of the Godhead and his desire for Trinitarian relationship while living on the earth?
He prayed, and he read the Bible.
Jesus’ withdrawal from the crowd for private prayer is explicit throughout the Gospels (Matthew 26:36, Mark 1:35, Luke 9:18). And it is evident from Jesus’ preaching and teaching (Luke 4:16-27) that he was knowledgeable in the whole Scriptures in a way that could only have come from dedicated study.