Therefore be imitators of God, as beloved children.
And walk in love, as Christ loved us and gave himself up for us...
Ephesians 5:1-2 (ESV)

Marriages: Passion

...submitting to one another out of reverence for Christ.
Ephesians 5:21 (ESV)

Pray that couples would have a passion for serving one another and forgiving one another.
Pray that husbands would love their wives in a way that is meaningful to them.
Pray that wives would humbly respect their husbands.

Marriages: Perseverance

I therefore, a prisoner for the Lord, urge you to walk in a manner worthy of the calling to which you have been called, with all humility and gentleness, with patience, bearing with one another in love, eager to maintain the unity of the Spirit in the bond of peace.
Ephesians 4:1-3 (ESV)

Pray for couples to bear with one another in love.
Pray for gentleness and humility in conversations..
Pray for marriages to be unified around the right things.

Families: Peace

Children, obey your parents in the Lord, for this is right.
Ephesians 6:1 (ESV)

Pray for homes to be filled with peace and joy.
Pray for children to be obedient to their parents.
Pray for parents to model Christ to their kids.

Families: Protection

Finally, be strong in the Lord and in the strength of his might. Put on the whole armor of God, that you may be able to stand against the schemes of the devil.
Ephesians 6:10-11 (ESV)

Pray for families to equip themselves with scripture.
Pray for God to protect families from harm.
Pray for children to be shielded from evil.
Pray for homes to be a place of safety and comfort.

Single People: Purity

But sexual immorality and all impurity or covetousness must not even be named among you, as is proper among saints. Let there be no filthiness nor foolish talk nor crude joking, which are out of place, but instead let there be thanksgiving.
Ephesians 5:3-4 (ESV)

Pray for single people to remain abstinent until marriage.
Pray for their thoughts and actions to be pure.
Pray that they would keep their focus on Christ.

Single People: Patience

Look carefully then how you walk, not as unwise but as wise, making the best use of the time, because the days are evil. Therefore do not be foolish, but understand what the will of the Lord is.
Ephesians 5:15-17 (ESV)

Pray for single people to be wise in how they live and the decisions they make.
Pray that they can discern if God is calling them to remain single or seek a spouse.
Pray for single people to use their lives to serve God faithfully and follow his Word.

Additional Scriptures for Prayer & Study

I do not cease to give thanks for you, remembering you in my prayers, that the God of our Lord Jesus Christ, the Father of glory, may give you the Spirit of wisdom and of revelation in the knowledge of him, having the eyes of your hearts enlightened, that you may know what is the hope to which he has called you, what are the riches of his glorious inheritance in the saints, and what is the immeasurable greatness of his power toward us who believe, according to the working of his great might that he worked in Christ when he raised him from the dead and seated him at his right hand in the heavenly places, far above all rule and authority and power and dominion, and above every name that is named, not only in this age but also in the one to come.
Ephesians 1:16-21 (ESV)

For this reason I bow my knees before the Father, from whom every family in heaven and on earth is named, that according to the riches of his glory he may grant you to be strengthened with power through his Spirit in your inner being, so that Christ may dwell in your hearts through faith—that you, being rooted and grounded in love, may have strength to comprehend with all the saints what is the breadth and length and height and depth, and to know the love of Christ that surpasses knowledge, that you may be filled with all the fullness of God.
Ephesians 3:14-19 (ESV)