Both St Paul (and i'm assuming this was inspired by Christ; see 1 Thessalonians 5:17) and Our Blessed Mother (in various apparitions) have expressed the likes of "Pray, pray without ceasing". To try and do this, traditionally religious communities have set prayer times throughout the day, called "praying the hours". There are also different liturgies of the hours, and different litanies and novenas. A sampling is here, and more is coming as unfolds...

On Praying the Pslams

A Medieval Book of Hours

Little Office of the BVM

Sacred Hearts Devotions

The Rosary of Tears

Marian Antiphons

Shabbat Shalom

Ye Devotionals

Patron Saint Ministry

Having a Rule of Life

Bible Gateway

(Image is "In Favor With God" by Simon Dewey from here)