Serve the Lord with all thine heart (Deut. 10:12).
Serve Him without fear (Luke 1:74).
Serve the Lord with gladness (Psa. 100:2).
Serve Him with a willing mind (1 Chron. 28:9).
Serve with pure conscience (2 Tim. 1:3).
Serve God acceptably with reverence (Heb. 12:28).
Serve the Lord with all humility (Acts 20:19).
Bible Student