A Holy Nation — T. Austin-Sparks
In this sermon, the speaker emphasizes the importance of separation from the world in the life of Abraham. God called Abraham to leave his country, his family, and his father's house in order to establish a people of a different kind. The speaker highlights how God demonstrated the evil nature of the world through the plagues in Egypt and how He met Moses at the burning bush to deliver His people from the power of darkness. The sermon also mentions the Israelites' struggle with their hearts still being attached to Egypt even after being physically separated, and how crossing the Jordan River symbolized their hearts finally being out of Egypt. The speaker concludes by emphasizing the need for believers to be separated unto God and live a holy life that leaves a mark for God.
Source: https://www.sermonindex.net/speakers/t-austin-sparks/a-holy-nation/