Your election is in Christ unto salvation from eternal judgment. Christ is our deliverance from condemnation. Election is God the Father's choice to save sinners in Christ (Ephesians 1:4-6). Reprobation is the opposite of election. It is the choice of those who reject God's salvation in Christ (John 3:18).
Your election is in Christ by God's grace. He saves us from the condemnation of our sin. God's grace is his goodness, leading us to repentance (Romans 2:4). God commands all people everywhere to repent (Acts 17:30). Those who are lost reject God's grace and goodness (Hebrews 10:29).
Your election is in Christ confirmed through faith (2 Peter 1:1,10). Election gives mercy to sinners through Christ crucified (Romans 5:8). Christ risen from the dead brings justification to sinners by faith alone (Romans 4:5; 10:9). Faith in Christ makes our calling and election sure.
Your election is in Christ by God's will through the gospel. That is to say, our election is in Christ alone (1 Peter 1:1-2). Those who reject the gospel of Christ have no one to blame but themselves. Christ is God's Elect One, and we are elect in Christ (Isaiah 42:1; Ephesians 1:3-4).
Your election is in Christ to the praise of God's glory. God saves us by faith in Christ to the praise of His glorious grace (Ephesians 1:6). To the contrary, God allows those who are lost to reject Christ unto their own just condemnation (John 3:19, 36).