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.
( Salīdzināt Jozuas 1: 8; Lūkas 2: 37; Apustuļu darbi 20: 31; 2. Tesaloniķiešiem 3: 8.)