Which scripture supports the idea of God's unconditional election?

Romans 8:30 is a key scripture that supports the concept of God's unconditional election. This verse articulates the sequence of salvation where Paul writes about those whom God predestines being also called, justified, and ultimately glorified. This sequence underscores the sovereignty of God in salvation, emphasizing that His choice to elect individuals is not based on foreseen merit or actions on their part but rather on His sovereign will and grace. The context of this passage highlights that God takes the initiative in salvation, affirming that His decisions regarding election and eternal purpose stand independent of human actions or decisions. This perspective aligns with the doctrine of unconditional election, which asserts that God's selection of certain individuals for salvation is entirely reliant on His grace and purpose, rather than any foreseen qualities in them.