Given the short period of time preachers often face in which to give a testimony or bring a word from the Lord, a simple Bible outline may be the best way to communicate to those who are listening.  One such outline is 2 Corinthians 13:14.  It is the close of Paul's second epistle to Corinth:  The grace of the Lord Jesus Christ, and the love of God, and the communion of the Holy Ghost be with you all.  Amen.

The Lord's grace is Calvary: For ye know the grace of our Lord Jesus Christ, that, though he was rich, yet for your sakes he became poor, that ye through his poverty might be rich (2 Corinthians 8:9).

God's love is Calvary: For God so loved the world, that he gave his only begotten Son, that whosoever believeth in him should not perish, but have everlasting life (John 3:16).

The Holy Spirit's communion is found at Calvary: the communion of the blood of Christ (1 Corinthians 10:16) is the cup which we bless, and it is the blood of Jesus Christ his Son that cleanseth us from all sin (I John 1:7).

Calvary makes the difference.  Have you been to Calvary?  Have you received the salvation God has provided for us through the Lord Jesus Christ?