When you obey Christ, you testify that Christ has truly saved you; when you sin, your claim to be a Christian is undermined.
Observing the Sabbath gives testimony to God’s ability to provide and care for us.
Believers must overcome fear and find courage to give a verbal testimony for Christ whenever the opportunity presents itself. Fight fear. Be courageous. Live and speak for Jesus.
Christians are to speak the truth in love. Speak truth to those you love with all the love you can.
One generation of believers must faithfully pass the gospel on to the next.