Being elected by God is the ultimate expression of love
because He is not obligated to show mercy to anyone as He can do with His rebellious creation whatever He pleases. ‘Predestination’, ‘election’ and ‘chosen’ are interchangeable terms referring to His act of choice. “It does not depend on man’s desire or effort” – it is solely an act of God’s mercy…“He has mercy on whom He wants to have mercy” (Rom 9:10-23).
God in His foreknowledge knows those who will respond to His offer and it is these who He chooses to be saved, yet they must still decide to yield to Christ as no one is a puppet with their freewill over-ridden (Jn 1:12, 6:44; Act 13:48; 2 Thes 2:13; 2 Tim 1:9; 1 Pet 1:2). It is our responsibility to preach the gospel to all, and although God would like all people to be saved many will reject the offer of salvation; only He knows those who will accept and who will reject that offer (Mk 16:15; 1 Tim 2:4).
Some of the individuals God chose for specific tasks include: Moses, the disciples, and Paul (Ps 106:23; Lk 6:13; Act 9:15). Jesus, Himself, was the ‘elect of God’ (Mt 12:18). In the OT God choose Abraham and gave a promise to him and his descendants that they would be a special people, blessed by Him as they responded in obedience. A covenant was established with this group of people we know as the Jewish nation (Gen 12:1-3; Deut 7:6).
Saving faith is evidence of salvation
conformed to the image of His son and grow into the fullness of Christ, to live holy and blameless lives, for the praise of His glory (Rom 8:28,29; Eph 1:4,5,11,12, 3:11, 4:13; 1 Thes 1:4). Our responsibility is to believe, to receive Jesus Christ as Saviour by grace through faith, trusting in Him alone for salvation (Jn 3:16; Eph 2:8,9). No one seeks after God's plan of salvation on their own accord for we are blind to our need of salvation (Rom 3:10-18; 2 Cor 4:4). This only changes when God draws us to Himself and grants us the privilege to repent (Jn 6:44; Act 11:18). God intervenes in the lives of the elect by the Holy Spirit so they respond in faith to Him and receive God's perfect grace, the non-elect receive His perfect justice.
Show God He made a good choice
impartiality and fairness of God that only some are chosen for salvation, we should marvel at His mercy why He would choose any at all.