Josiah Duggar and Marjorie Jackson enjoying courtship; sing 'How deep the Father's love for us' together

Josiah Duggar and Marjorie Jackson sing together.YouTube/Duggar family

Newly coupled teens Josiah Duggar and Marjorie Jackson shared a video of them singing together on the popular Duggar family blog.

Jackson played the piano and sang while Duggar accompanied her on "How Deep the Father's Love For Us." Friends of theirs recorded the performance and sang along. 

"We're making beautiful music together," Duggar said afterwards.

The teens announced two weeks ago that they began courting on April 6.

Duggar, 18, and Jackson, 17, began as friends, and their feelings blossomed into a relationship.

"I met Marjorie a few years ago, when I was taking Spanish lessons at her house and I was very impressed with the way she was with her siblings and her love for the Lord," Duggar told PEOPLE.

Jackson, the daughter of Greg and Analucia, has four sisters. She said the initial interest was mutual when her now-boyfriend took lessons from her mother. 

"I met him at Spanish class a few years back," she confirmed. "For me it was an immediate thing. I have always admired him and his family."

Their feelings increased after the teens went on a mission trip to El Salvador in December.

"She really caught my eye," Duggar admitted. "That is really where I noticed her."

The couple's courtship began on the same day that Josiah's sister, Jill Dillard, gave birth to her firstborn son, Israel David. Jill and husband, Derick, will celebrate their one-year wedding anniversary on June 21.

A week after Josiah shared his courtship news, his other married sister, Jessa Seewald, revealed that she was entering her second trimester. Jessa and husband, Ben, did not respond to pregnancy rumours during the first trimester, and announced the news and due date to fans in their own time. 

"We pray every night that God helps us be good parents," said Ben. "We are getting advice from other parents."