Because it's expected of you.
It is socially unacceptable for members of your chosen denomination not to do the "special movement" when leaving/entering the "special building". Not all denominations or individuals use the practice, but it is generally regarded as sign of reverence to God by those who do practise it.
Catholic AnswerIn a Catholic Church you genuflect anytime that you cross in front of the Blessed Sacrament and before entering and upon leaving a pew. A genuflection is an act of adoration of the Blessed Sacrament which is Our Blessed Lord, Jesus Christ, truly present physically in the tabernacle and/or on the altar.In the Medieval and Renaissance periods it was the practice to "genuflect" before the "Monarch". To genuflect before the king was to kneel with your left knee touching the ground. As Catholics of that time, and the present, belive that Jesus is "really present" [ question on what "Real Presence" means would be another question ].It was necessary to distinguish between obesience to the King and the "King of Kings", therefore the practice of genuflecting, wth the right knee touching the floor, came into being, as the Monarch, himself, was obliged to give obesience to the "King of Kings" present in the "Blessed Sacrament" [ the 'hosts' reserved in the tabernacle behind the altar ].
Catholics bow in front of the altar as it is consecrated by a bishop and a sign of Jesus presence, many altars also contain the relics of saints, as well. They also bow at the name of Jesus as a sign of respect.
They genuflect when in front of the Blessed Sacrament or tabernacle as Jesus' Real Presence is there, not merely a sign.
Catholics genuflect to honor the Blessed Sacrament in the tabernacle. Protestants generally do not have the Blessed Sacrament present in the church so there would be no need to genuflect.
Billy would genuflect whenever he went to church.
It was always the habit of Mr Jones to genuflect when enterning the church.
Catholics genuflect in Church ONLY if the Blessed Sacrament is reserved in the sanctuary. In other words, they are genuflecting to God physically present in the front of their Church. As protestants don't even believe that this is physically possible, despite Our Blessed Lord's repeated assertion in the 6th chapter of St. John's Gospel, then why would they genuflect? You genuflect to God, protestants do not believe that God is in their "churches" so is no need for them to genuflect.
upon entering the church
The syllabication of the word "genuflect" is gen-u-flect.
The word "genuflect" is divided as geΒ·nuΒ·flect.
When passing in front of the tabernacle, the proper reverence is to genuflect ( kneel on the right knee momentarilty). This does not occur in procession, but would apply othewise. If the tabernacle is at the sanctuary center, behind the altar, people should genuflect before entering pew; otherwise, they bow.
She genuflected in front of the altar before taking her seat in the pew.
the first
It probably came from church as people are supposed to come to church as they are, as they are cleansed there and not before.
The first.