I know many Christians who never open up their mouths about their faith to anyone. Some keep quiet because they do not want to offend someone else. Some keep quiet because they do not feel like they have the spiritual gift of evangelism. Some keep quiet because they really do not have faith at all, but have simply been going through the motions.
Psalm 71 is about sharing with others what God has done in your life:
I’ve taken refuge in you, Lord.
Don’t let me ever be put to shame!
2 Deliver me and rescue me by your righteousness!
Bend your ear toward me and save me!
3 Be my rock of refuge
where I can always escape.
You commanded that my life be saved
because you are my rock and my fortress.
4 My God, rescue me from the power of the wicked;
rescue me from the grip of the wrongdoer and the oppressor
5 because you are my hope, Lord.
You, Lord, are the one I’ve trusted since childhood.
6 I’ve depended on you from birth—
you cut the cord when I came from my mother’s womb.
My praise is always about you.
7 I’ve become an example to many people
because you are my strong refuge.
8 My mouth is filled with your praise,
glorifying you all day long.
9 Don’t cast me off in old age.
Don’t abandon me when my strength is used up!
10 Yes, my enemies have been talking about me;
those who stalk me plot together:
11 “God has abandoned him!
Grab him because no one will deliver him!”
12 Don’t be far from me, God!
My God, hurry to help me!
13 Let my accusers be put to shame,
completely finished off!
Let those who seek my downfall
be dressed in insults and disgrace!
14 But me? I will hope. Always.
I will add to all your praise.
15 My mouth will repeat your righteous acts
and your saving deeds all day long.
I don’t even know how many of those there are!
16 I will dwell on your mighty acts, my Lord.
Lord, I will help others remember nothing but your righteous deeds.
17 You’ve taught me since my youth, God,
and I’m still proclaiming your wondrous deeds!
18 So, even in my old age with gray hair,
don’t abandon me, God!
Not until I tell generations about your mighty arm,
tell all who are yet to come about your strength,
19 and about your ultimate righteousness, God,
because you’ve done awesome things!
Who can compare to you, God?
20 You, who have shown me many troubles and calamities,
will revive me once more.
From the depths of the earth,
you will raise me up one more time.
21 Please increase my honor
and comfort me all around.
22 Then I’ll give you thanks with a harp—
I will thank you for your faithfulness, my God.
I will make music for you with the lyre, holy one of Israel.
23 My lips will rejoice aloud when I make music for you;
my whole being, which you saved, will do the same.
24 My tongue, also, will tell of your righteousness all day long,
because those who seek my downfall
have been put to shame and disgraced.
If God has done something wonderful in your life, share it with others. Take verses 18 and 19 to heart: “So, even in my old age with gray hair, don’t abandon me, God! Not until I tell generations about your mighty arm, tell all who are yet to come about your strength, and about your ultimate righteousness, God, because you’ve done awesome things!”
This is the most natural way to share faith. People do not respond well to statements with which they have to agree. People respond to stories. And there is no arguing what has happened in someone’s life. If you have a story about how God has worked in your life, you need to share it, especially with the younger generations! They need to know God is real and God does act in the world today. God is not confined to biblical times, but is present and active in our lives today.