"***** Sabbath Services —The one appointed to conduct Sabbath services should study how to interest his hearers in the truths of the Word. He should not always give so long a discourse that there will be no opportunity for those present to confess Christ. The sermon should frequently be short, so that the people may express their thanksgiving to God. Gratitude-offerings glorify the name of the Lord. In every assembly of the saints holy angels listen to the praise offered to Jehovah in testimony, song, and prayer. GW 171.1"
"By him therefore let us offer the sacrifice of praise to God continually, that is, the fruit of our lips giving thanks to his name."
Both passages emphasize the importance of offering praise and thanksgiving to God, particularly in a communal setting. The EGW passage specifically mentions gratitude-offerings and praise in testimony, song, and prayer, while Hebrews 13:15 speaks of the 'sacrifice of praise' and 'giving thanks to his name.'
"The prayer and social meeting should be a season of special help and encouragement. All should feel it a privilege to take part. Let every one who bears the name of Christ have something to say in the social meeting. The testimonies should be short, and of a nature to help others. Nothing will so completely kill the spirit of devotion as for one person to take up twenty or thirty minutes in a long testimony. This means death to the spirituality of the meeting. GW 171.2"
"How is it then, brethren? when ye come together, every one of you hath a psalm, hath a doctrine, hath a tongue, hath a revelation, hath an interpretation. Let all things be done unto edifying."
Both passages address the conduct of meetings and the importance of participation and edification. 1 Corinthians 14:26 encourages everyone to contribute something beneficial, while the EGW passage emphasizes short, helpful testimonies and warns against lengthy contributions that stifle the spirit of devotion. The principle of edifying one another is central to both.