What is the biblical and ecclesial understanding of the ranks of the priesthood?

St. Basil the Great demonstrates the biblical and ecclesial understanding of the ranks of the priesthood in that although he was the archbishop of a diocese, he considered himself equal to the rest of the servants of the Church, whether bishops, priests, or deacons. He viewed the deacon as his brother¹⁵⁷⁵ and his beloved son,¹⁵⁷⁶ and addressed the priests as “deserving of all reverence.”¹⁵⁷⁷