What does the Bible say about praying always?

In Luke 18, Jesus tells a parable to emphasize the importance of persistent prayer, stating that men ought always to pray and not faint. This directive is reinforced by the example of a widow who continually appeals to an unjust judge until he ultimately grants her request, illustrating the significance of perseverance in prayer. The Lord invites His elect to approach Him repeatedly, contrasting the unjust judge with a God who cares deeply for His people and promises to respond to their petitions. The encouragement remains that God, being a living and righteous being, will answer the cries of His own elect who seek Him earnestly.