Question

6. How often and when must a Christian pray? (See 1 Thess. 5:17; Psalm 55:17; Mark 1:35).........​

Answer 1

3 times daily

Step-by-step explanation:

The injunction for Christians to pray the Lord's prayer thrice daily was given in Didache 8, 2 f., which, in turn, was influenced by the Jewish practice of praying thrice daily found in the Old Testament, specifically in Psalm 55:17, which suggests "evening and morning and at noon