This artwork by Tissot shows the proud pharisee praying at the front of the Temple, while the penitent publican bows his head in the back, asking God for mercy. The scene derives from the parable of Jesus Christ, recorded in Luke 18:10-14.
Lk 18:9-14
The Parable of the Pharisee and the Tax Collector.
9He then addressed this parable to those who were convinced of their own righteousness and despised everyone else.c
10“Two people went up to the temple area to pray; one was a Pharisee and the other was a tax collector.
11The Pharisee took up his position and spoke this prayer to himself, ‘O God, I thank you that I am not like the rest of humanity—greedy, dishonest, adulterous—or even like this tax collector.
12I fast twice a week, and I pay tithes on my whole income.’d
13But the tax collector stood off at a distance and would not even raise his eyes to heaven but beat his breast and prayed, ‘O God, be merciful to me a sinner.’e
14I tell you, the latter went home justified, not the former; for everyone who exalts himself will be humbled, and the one who humbles himself will be exalted.”f
https://bible.usccb.org/bible/luke/18
Saying the holy name of Jesus is the simplest way of praying always.
1-A prayer from Raphael the Archangel:
*While you are on this earth, you must praise the Lord God and give him thanks.
2-A prayer from Tobit and Tobias:
*They began to sing hymns of praise, giving thanks for all the mighty deeds God had done while his angel Raphael had been with them.
3-A simple Jesus prayer:
*Lord, Lord, Jesus Christ…Son of God…have mercy on me…Be kind to others…Work Hard…Be joyful.
4-Another prayer:
*When all that God asks of us is to be quiet and keep ourselves at peace-attentive to the secret work He is beginning in our souls-Be Empty and See That I Am God.
But since we belong to the day, let us be sober, putting on faith and love as a breast-plate, and the hope of salvation as a helmet. For God did not appoint us to suffer wrath but to receive salvation through our Lord Jesus Christ.
1 Thes 5:8–9