Do not say…that one or two books is sufficient for instructing the soul. After all, even the bee collects honey not from one or two flowers only, but from many. Thus also he who reads the books of the Holy Fathers is instructed by one in faith or in right thinking, by another in silence and prayer, by another in obedience and humility and patience, by another in self-reproach and in love for God and neighbor; and, to speak briefly, from many books of the Holy Fathers a man is instructed in life according to the Gospel.
– Paisius Velichkovsky
Paisius Velichkovsky was an Eastern Orthodox monk and theologian. His observation is a rather simple one: we must learn wisdom from the bee, gathering wisdom diligently, broadly, and with great discipline. He exhorts us to read from the Holy Fathers, from the saints of old, who can instruct us in the Gospel and in Christian living. Our souls, being great things, need great nourishment. Like the bee, the gathering should take place daily, not from a paltry collection of sources, but from a diversity of literary riches.
I like to read and study. Not everyone is like me. Thank God. But if I could offer one bit of encouragement to others who, like me, are following Jesus, it would be to read a little more often than you do now. Begin with the Bible, particularly if Scripture is something you neglect. Scripture is a dietary staple. But then add to that a work of theology, or a historical work about a person who has been important to the Christian tradition.
Pay particular mind to your denominational heritage, if you have one (if you are a Methodist, read Wesley, if you are a Presbyterian, read Calvin, etc., etc.). I’d like the Baptists I know to be better Baptists, the Methodists I know to exemplify the best of their tradition, and on and on. Consider doing as Velichkovsky recommends: read the Church Fathers. Read Augustine. Read Athanasius. Read the Desert Fathers and Mothers. The old stuff is profoundly rich.
Choose one or two or three great theologians or renowned saints. Get to know them well, even if a little bit at a time. Pick up their work. Buy a book and learn about their lives. Read each day. Choose wisely. Stick with it. Observe. Learn. Apply. Grow.