Gnosticism was the problem during the first century, and St. John the Apostle addressed this problem with in his Letter with a simple reminder: humanity and divinity must not be separated. To know God we must love one another, there is not other way. This temptation to separate humanity from divinity is visible even in our day. How? When we think that perfect prayer is all we need to grow in faith, perfect liturgy, perfect knowledge of theology, etc. But what about love of neighbour, love of that which is human, created, right in front of our noses? Those who claim to know God and yet do not love their neighbour are living a lie.