"Sanctification is not to be understood here as a separation from ordinary use or consecration to some special use, although this meaning is often present in Scripture, sometimes referring to outward and sometimes to inward or effectual separation"

In this quote, William Ames is discussing the concept of sanctification. He is stating that sanctification does not constantly describe a physical separation from something, however can also describe an internal or spiritual separation. He is recommending that sanctification can be both outside and inward, and can describe a consecration to an unique use or to a common usage. Ames is highlighting that sanctification is not restricted to one specific meaning, but can be analyzed in a range of methods. He is recommending that sanctification can be seen as a spiritual change, a physical separation, or a commitment to an unique function. Eventually, Ames is stressing that sanctification is an intricate principle that can be analyzed in several methods.