Principle of Prayer:

Who, What, Where, When

Psalm 145:18 NKJV

18 The Lord is near to all who call upon Him, To all who call upon Him in truth.

1 Timothy 2:8 NKJV

8 I desire therefore that the men pray everywhere, lifting up holy hands, without wrath and doubting;

(Matthew Henry's Concise Commentary on the Whole Bi) Under the gospel, prayer is not to be confined to any one particular house of prayer, but men must pray every where. We must pray in our closets, pray in our families, pray at our meals, pray when we are on journeys, and pray in the solemn assemblies, whether more public or private. We must pray in charity; without wrath, or malice, or anger at any person. We must pray in faith, without doubting, and without disputing

Ephesians 6:18–20 NKJV

18 praying always with all prayer and supplication in the Spirit, being watchful to this end with all perseverance and supplication for all the saints— 19 and for me, that utterance may be given to me, that I may open my mouth boldly to make known the mystery of the gospel, 20 for which I am an ambassador in chains; that in it I may speak boldly, as I ought to speak.

1 Thessalonians 5:17 NKJV

17 pray without ceasing,

Matthew 6:5–8 NKJV

5 “And when you pray, you shall not be like the hypocrites. For they love to pray standing in the synagogues and on the corners of the streets, that they may be seen by men. Assuredly, I say to you, they have their reward. 6 But you, when you pray, go into your room, and when you have shut your door, pray to your Father who is in the secret place; and your Father who sees in secret will reward you openly. 7 And when you pray, do not use vain repetitions as the heathen do. For they think that they will be heard for their many words. 8 “Therefore do not be like them. For your Father knows the things you have need of before you ask Him.

Colossians 4:1–6 AMP

1 MASTERS, [on your part] deal with your slaves justly and fairly, knowing that also you have a Master in heaven. 2 Be earnest and unwearied and steadfast in your prayer [life], being [both] alert and intent in [your praying] with thanksgiving. 3 And at the same time pray for us also, that God may open a door to us for the Word (the Gospel), to proclaim the mystery concerning Christ (the Messiah) on account of which I am in prison; 4 That I may proclaim it fully and make it clear [speak boldly and unfold that mystery], as is my duty. 5 Behave yourselves wisely [living prudently and with discretion] in your relations with those of the outside world (the non-Christians), making the very most of the time and seizing (buying up) the opportunity. 6 Let your speech at all times be gracious (pleasant and winsome), seasoned [as it were] with salt, [so that you may never be at a loss] to know how you ought to answer anyone [who puts a question to you].

Ephesians 6:18–20 NKJV

18 praying always with all prayer and supplication in the Spirit, being watchful to this end with all perseverance and supplication for all the saints— 19 and for me, that utterance may be given to me, that I may open my mouth boldly to make known the mystery of the gospel, 20 for which I am an ambassador in chains; that in it I may speak boldly, as I ought to speak.