The following is from thewestminsterstandard.org:
Q. 104. What do we pray for in the fourth petition?
A. In the fourth petition, which is, Give us this day our daily bread,” we pray, that of God’s free gift we may receive a competent portion of the good things of this life, and enjoy his blessing with them.
Matt. 6:11; Prov. 30:8-9; Gen. 28:20; 1 Tim. 4:4-5.
Q. 105. What do we pray for in the fifth petition?
A. In the fifth petition, which is, And forgive us our debts, as we forgive our debtors,” we pray, that God, for Christ’s sake, would freely pardon all our sins; which we are the rather encouraged to ask, because by his grace we are enabled from the heart to forgive others.
Matt. 6:12; Ps. 51:1-2, 7, 9; Dan. 9:17-19; Luke 11:4; Matt. 18:35.
Q. 106. What do we pray for in the sixth petition?
A. In the sixth petition, which is, And lead us not into temptation, but deliver us from evil,” we pray, that God would either keep us from being tempted to sin, or support and deliver us when we are tempted.
Matt. 6:12; Matt. 26:41; 2 Cor. 12:7-8.
Q. 107. What doth the conclusion of the Lord’s Prayer teach us?
A. The conclusion of the Lord’s Prayer, which is, For thine is the kingdom, and the power, and the glory, for ever. Amen,” teacheth us to take our encouragement in prayer from God only, and in our prayers to praise him, ascribing kingdom, power, and glory to him; and in testimony of our desire and assurance to be heard, we say, Amen.
Matt. 6:13; Dan. 9:4-9, 16-19; 1 Chr 29:10-13; 1 Cor. 14:16; Rev. 22:20-21.
