Charles Spurgeon said, "All you can receive, and all you ever ought to hope for, must be through the covenant of free grace." To understand how God works in every believer's life, we must understand grace. God has sworn with an oath of promise to save us by grace in Christ (Hebrews 7:21-25). Grace is the gift of God. Grace is received by faith in Christ.
Grace is received through the everlasting covenant of Christ (Hebrews 13:20-21). The covenant is summarized in four promises to every believer (Hebrews 8:10-12). First, God will put his laws in your mind and heart. Second, each one will know God in a personal relationship. Third, God will be merciful unto you. Fourth, God will remember your sins no more.
Grace is received through Christ as our covenant surety (Hebrews 7:20-22). God always works through covenant. He tells you what he is doing and what he shall do. Covenant is an agreement or contract that includes God's everlasting promises to every believer, guaranteed through Christ Jesus our covenant surety.
Grace is received through the everlasting gospel of our Lord Jesus Christ (Revelation 14:6). That is God's covenant of grace in Christ. It is based on the merits and righteousness of Christ alone to every believer (2 Corinthians 5:21). It is received by grace through faith in Christ, because it is the gift of God and not of our works (Ephesians 2:8-9).