What is the first petition?

Heidelberg Catechism

Question 122. What is the first petition?

Answer. “Hallowed be Thy name;” that is, grant us, first, rightly to know You, [1] and to hallow, magnify, and praise You in all Your works, in which Your power, goodness, justice, mercy, and truth shine forth;[2] and further, that we so order our whole life, our thoughts, words, and deeds, that Your name may not be blasphemed, but honored and praised on our account.[3]

[1] Ps 119:105; Jer 9:23-24, 31:33-34; Mt 16:17; Jn 17:3; Jas 1:5;
[2] Ex 34:5-8; Ps 119:137; Ps 145; Jer 32:16-20; Lk 1:46-55, 68-75; Rom 11:33-36;
[3] Ps 71:8, 16, 92:1-2, 100:3-4, 115:1; Mt 5:16; Eph 1:16-17