[nicmarlo]

Biblical references:

1 Thessalonians 5

16 Rejoice always;
17 pray without ceasing;
18 in everything give thanks; for this is God's will for you in Christ Jesus.

Ephesians 6

18 With all prayer and petition pray at all times in the Spirit, and with this in view, be on the alert with all perseverance and petition for all the saints,

[Luis Gonzalez]

Not questioning any of your quotes, but every one can be done as described in Matthew, basically quietly.