When Joy thy heart is swelling

1 When joy thy heart is swelling,
When thou art wild with glee,
When laughter shouts are telling
Of school-boys' revelry,--
O swear not in thy playing,
Swear not thy wit to show!
The Name we use in praying,
Canst thou profane it so?

2 When angry thoughts invade thee,
And prompt unkind desire,--
If petty wrongs have made thee
Speak out thy burning ire;
O swear not in thy playing,
Swear not thy wrath to show!
The Name we use in praying,
Canst thou profane it so?

3 When sportive tongues invite thee
To worthy contests vile,
Still striving to delight thee
By oaths and mingled smile,--
O swear not in thy playing,
Swear not thy skill to show!
The Name we use in praying,
Do not profane it so!

Source: Linden Harp: a rare collection of popular melodies adapted to sacred and moral songs, original and selected. Illustrated. Also a manual of... #106