Hebrews 2:14

We children share in flesh and blood with one another; we share the limitations of humanity. To free us from these limitations the Son had to assume the same limitations, which He did at the Incarnation. Jesus Christ broke Satan’s power over believers by His death. Obviously Satan still exercises great power, but Jesus Christ broke his power to enslave believers (cf. Romans 6:1-14). Furthermore Jesus Christ defeated Satan in the area of his greatest strength: his power to inflict death.