Mark 14:44
Now the one who turned Him over to the Jewish leaders [i.e., Judas] had given them a signal, saying, "Whoever I give a kiss [of greeting] to, he is the one; arrest him and lead him away under guard."
Romans 1:31
they do not have any sense; they do not keep their promises; they fail to show natural affection; and they are merciless.
1 Timothy 5:8
But if anyone does not provide for [the needs of] his own [relatives], and especially for his own [immediate] family, he has denied the faith [i.e., the fundamental beliefs of Christianity], and is worse than an unbeliever.
2 Timothy 1:16-18
[But], may the Lord grant mercy to Onesiphorus' family, for he cheered me up many times and was not ashamed of my [being in] chains.
James 2:13
For the person who has shown no mercy will be judged without mercy. [For] mercy wins out over condemnation.