Believers will never have to face God’s just sentence for their sins and spend eternity in hell separated from God. Think of someone in a courtroom who is guilty of a horrible crime and deserving of the severest punishment, but is instead declared innocent because someone else paid the penalty for them—and even made them coheirs with him, sharing in his vast wealth. This is the joyful justification every believer has in Christ.

Here are 10 words every Christian should know—and be able to explain—in order to “be prepared to give an answer to everyone who asks you to give the reason for the hope that you have” (1 Peter 3:15).

1. Faith

Saving faith is not, as is commonly believed, a blind faith. There are three aspects of saving faith:

• knowledge of Christ and his salvific work;
• agreement that the claims of Christianity are true;
• hearty trust in Christ alone for our salvation.

Faith is the instrument through which, by God’s grace, Christ’s perfect righteousness and atoning sacrifice are credited to us. It is God’s gift, not a work of any kind (Eph. 2:8-9). For more on the definition of faith, please click here.

2. Grace

Grace is one of God’s attributes. According to theologian Louis Berkhof, the grace of God in our redemption in Christ

is God’s free, sovereign undeserved favor or love to man, in his state of sin and guilt, which manifests itself in the forgiveness of sin and deliverance from His justice. (Systematic Theology, p. 427).

There is nothing we have done or could ever do to merit God’s grace. We receive it by God’s sovereign choice alone (Rom. 11:5-6).

3. Peace

There are two aspects to peace—objective and subjective. Just as two countries have a status of peace with each other through official agreements, so Christians are declared at peace with God through Jesus Christ (Rom. 5:1). This means that we still have the status of peace with God regardless of how we feel or how well we keep his commands at any given time.

It is normal for Christians to still feel anxious in this troubled world and to feel a lack of peace from the sin in their lives. These feelings should spur us on to trust in God, repent of our sins, and seek to live in such a manner that honors our Lord. Christians should always be exceedingly thankful and find unfathomable comfort in the fact that the blood of Christ sufficiently atones for all their guilt and sin.

4. Cross

God in his perfection must uphold all his attributes. We cannot separate God’s love from his holiness, or his mercy from his justice. God must be true to all his attributes, because to do otherwise would be to deny his own self.

As theologian Michael Horton so aptly states in his book The Christian Faith, “God would not be God if he did not possess all his attributes in the simplicity and perfection of his essence” (229). Jesus was born in the flesh so he could fulfill the whole law and be the perfect sacrifice on behalf of all who put their faith in him (Heb. 10:11-14).

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