New Revised Standard Version
If you will diligently observe this entire commandment that I am commanding you, loving the LORD your God, walking in all his ways, and holding fast to him,

Contemporary English Version
Love the LORD your God faithfully and obey all the laws and teachings I'm giving you today. If you live the way the LORD wants,

New American Bible
For if you are careful to observe this entire commandment I am giving you, loving the LORD, your God, following his ways exactly, and holding fast to him,

Douay-Rheims Bible
For if you keep the commandments which I command you, and do them, to love the Lord your God, and walk in all his ways, cleaving unto him,

For if you keep the commandments which I command you, and do them, to love the Lord your God, and walk in all his ways, cleaving unto him,

if ye shall

Deuteronomy 11:13 If then you obey my commandments, which I command you this day, that you love the Lord your God, and serve him with all your heart, and with all your soul:

Deuteronomy 6:17 Keep the precepts of the Lord thy God, and the testimonies and ceremonies which he hath commanded thee.

to love

Deuteronomy 11:13 If then you obey my commandments, which I command you this day, that you love the Lord your God, and serve him with all your heart, and with all your soul:

Matthew 22:37 Jesus said to him: Thou shalt love the Lord thy God with thy whole heart and with thy whole soul and with thy whole mind.

2 Timothy 4:8 As to the rest, there is laid up for me a crown of justice which the Lord the just judge will render to me in that day: and not only to me, but to them also that love his coming. Make haste to come to me quickly.

1 John 5:2,3 In this we know that we love the children of God: when we love God and keep his commandments. . . .

to cleave

Deuteronomy 10:20 Thou shalt fear the Lord thy God, and serve him only: to him thou shalt adhere, and shalt swear by his name.

Deuteronomy 30:20 And that thou mayst love the Lord thy God, and obey his voice, and adhere to him (for he is thy life, and the length of thy days,) that thou mayst dwell in the land, for which the Lord swore to thy fathers Abraham, Isaac, and Jacob that he would give it them.

Genesis 2:24 Wherefore a man shall leave father and mother, and shall cleave to his wife: and they shall be two in one flesh.

Acts 11:23 Who, when he was come and had seen the grace of God, rejoiced. And he exhorted them all with purpose of heart to continue in the Lord.

2 Corinthians 11:2,3 For I am jealous of you with the jealousy of God. For I have espoused you to one husband, that I may present you as a chaste virgin to Christ. . . .