Denver, Colo. /(CNA) - This month, the Church celebrates Pentecost, one of the most important feast days of the year that concludes the Easter season and celebrates the beginning of the Church.  

Here’s what you need to know about the feast day:

The timing and origins of Pentecost

Pentecost always occurs 50 days after the death and resurrection of Jesus, and ten days after his ascension into heaven. Because Easter is a moveable feast without a fixed date, and Pentecost depends on the timing of Easter, Pentecost can fall anywhere between May 10 and June 13.

As our world wrestles with fear and uncertainty, Leadership Coach, Steve Ivaska, did a search on verses related to not being afraid, trusting God and experiencing His peace:

Isaiah 41:10 So do not fear, for I am with you; do not be dismayed, for I am your God. I will strengthen you and help you; I will uphold you with my righteous right hand.

Isaiah 41: 13 For I am the LORD your God who takes hold of your right hand and says to you, Do not fear; I will help you.