What does the Bible say about God's calling of Abram?

In Genesis 12, we see the Lord calling Abram, who was previously an idolater in Ur of the Chaldees. This divine calling highlights God's initiative in establishing a relationship with His people, as Abram had no desire or effort to seek God. The insistent voice of God spoke to Abram, instructing him to leave his country and kin, signifying that this was a deliberate choice by God to create a holy nation through Abram's lineage. God's calling is an act of sovereign grace, revealing His plan for salvation and His chosen instrument in that plan.