These are members of a pre-military preparatory school, which prepares people for combat roles in the IDF, singing different religious Jewish songs.
The first one is "Ben Adam Aleh L’Malah" by Rabbi Kook.
"Son of Man, Ascend towards the heights, ascend!
For you have the strength. You have wings of spirit, wings of mighty eagles.
Do not forsake them, lest they forsake you.
Seek them, and they will find you immediately."
The second one is "Lecha Dodi" is a Kabbalistic prayer we sing to welcome in the Shabbat on Friday night. They went to a hospital before Shabbat to sing for people there.
