How ironic that the Jews reached out for a rock to throw at Jesus! If they only knew Who was standing before them, they could have reached out for their Rock, Jesus (see 1 Cor 10:4).
These pious Jews were in the Temple area (see Jn 10:23). Presumably they were celebrating the Feast of the Dedication (Jn 10:22), a time of reconsecration and rededication. On this occasion, a faithful Jew would praise God, perhaps addressing Him as "my Rock and my Salvation" (Ps 62:3), my "Rock of refuge" (Ps 18:3).
They sang "soft-rock" praises, but had "hard-rock" hearts (see Ez 36:26). They "scorned their saving Rock" (Dt 32:15). They forgot the Rock Who made them (Dt 32:18) and spoke "haughtily against the Rock" (Ps 75:6), accusing Jesus of blasphemy and condemning Him to death (Jn 10:33).
As we approach Holy Week, let us bring our own rocky hearts before the Lord and ask Him to give us new hearts of love (Ex 36:26). Let us immerse ourselves in God's word, which shatters our rock-hard hearts (Jer 23:29). Meditate on Jesus' death on the cross, which splits open rock-hard hearts (see Mt 27:52). Build your life on the Rock (Mt 7:24).