Engaging in an activity “day and night ” implies regularity or consistency as well as earnest effort. ​ — Compare Joshua 1: 8; Luke 2: 37; Acts 20: 31; 2 Thessalonians 3: 8.
( So sánh Giô - suê 1: 8; Lu - ca 2: 37; Công - vụ các Sứ - đồ 20: 31; II Tê - sa - lô - ni - ca 3: 8).