They performed the service of their God and the service of purification, along with the singers and gatekeepers, according to the commandment of David and ¹  his son Solomon.

For the music director; according to the al-tashcheth style; ²  a prayer ³  of David, written when Saul sent men to surround his house and murder him. ⁴  Deliver me from my enemies, my God! Protect me ⁵  from those who attack me! ⁶ 

When they are ashamed of all that they have done, make known to them the design of the temple, its pattern, its exits and entrances, and its whole design – all its statutes, its entire design, and all its laws; write it all down in their sight, so that they may observe its entire design and all its statutes and do them.